When it was first launched in the wee hours of February 24, the 
Kremlin’s full-scale invasion of Ukraine was supposed to last just a few
 days and end with the quick capture of Kyiv.
Fast-forward six months: Those plans collapsed in spectacular fashion
 as Ukraine beat back Russian troops through a combination of sheer 
determination and plentiful Western arms. But despite Ukraine’s success,
 the conflict is far from over. On the contrary, it appears to be 
settling into a long, attritional battle that will test Ukrainian and 
Western resolve. 
The conflict, moreover, has already transformed much of what the 
world thought it knew about not only military operations and strategy, 
but also diplomacy, intelligence, national security, energy security, 
economic statecraft, and much more. So as the war hits its half-year 
mark, we asked experts across our vast network to share the biggest 
lessons they’ve learned from the crisis. The results, an illuminating 
and wide-ranging primer for policymakers and the public alike, are 
below.
Scroll and click through the carousel below to jump to a lesson:
Lesson for Western diplomacy: Don’t second-guess Ukrainians
Since day one, there’s been too much reluctance in the Biden 
administration: to share real-time intelligence with Ukraine for fear 
that not everyone in the Ukrainian government is trustworthy; to send 
heavy weapons for fear that Ukrainians don’t know how to use them (and 
that it would take too long to train Ukrainians); to send large enough 
assistance packages for fear of corruption. There’s also been an 
enormous reluctance to use the right language to describe the United 
States’ actual goal; when Defense Secretary Lloyd Austin talked about 
defeating Moscow so badly that it cannot attack Ukraine again, US 
President Joe Biden dressed him down. 
Yet time and again, Ukrainians have proven themselves worthy of 
America’s trust (and then some). With Western intelligence, they were 
able to withstand the invasion of Kyiv’s Hostomel Airport, which could 
have been decisive, and eradicate scads of Russian generals in addition 
to the Russian Navy’s flagship, the Moskva. With US weapons, 
Ukrainian soldiers pushed the Russians out of Kyiv and forced them to 
retreat to the Donbas. Now, with American long-range rockets, they’ve 
hit dozens of high-value targets. The bottom line is obvious: When 
Ukrainian President Volodymyr Zelenskyy and his team say they need 
something, the request is legitimate, and the United States should honor
 it immediately.   
—Melinda Haring is the deputy director of the Eurasia Center.
Lesson for global diplomacy: Putin’s regime can’t be trusted—and needs to be defeated
Six months of Russia’s genocidal war against Ukraine, as well as 
years of the Kremlin’s invasions of neighboring states and more recent 
hybrid warfare against the West, have made it clear that any agreements 
with Putin’s regime are simply not viable and often counterproductive. 
Russia invaded Ukraine in 2014 after having committed to be a guarantor 
of its sovereignty and territorial integrity under the Budapest 
Memorandum; in its most recent assault, the Kremlin seized one-fifth of 
Ukraine’s territories following years of negotiations over the conflict 
in Ukraine within the Normandy format and the Minsk agreements.
Moscow has been vocal about its disrespect for international law, 
liberal institutions, and all kinds of international treaties with 
partners and rivals alike. By committing war crimes and crimes against 
humanity in Ukraine, violating the basic principle of freedom of 
navigation, weaponizing food supplies and refugees, and engaging in 
energy and nuclear blackmail, Putin’s regime has posed existential 
threats not only to the future of the Ukrainian nation, but also to a 
rules-based world order. Appeasement, dialogue, and compromises with an 
aggressor have never worked. Russia escalates when it senses weakness 
and withdraws when it senses strength. If the world wants a sustainable 
peace in the region—rather than a tactical pause in Russian assaults—the
 West must learn the language of power, which is the only language Putin
 understands.
—Yevgeniya Gaber is a nonresident senior fellow at the Atlantic Council IN TURKEY.
Lesson for US foreign policy: The United States can no longer rely on strategic ambiguity
When a state possesses substantially more power than its adversaries,
 a policy of strategic ambiguity can spark reluctance among those 
adversaries to take actions that might provoke retaliation—especially if
 the more powerful nation has a reputation for responding unpredictably 
or disproportionately. But when a state’s relative power is perceived to
 be in decline, then a policy of strategic ambiguity can, conversely, 
inspire adventurism in an adversary—especially if the declining power is
 seen to be withdrawing, or otherwise appears weak or distracted.  
The long era of strong American relative power allowed US 
policymakers the luxury of adopting policies that featured strategic 
ambiguity. But those days have unfortunately passed, as was demonstrated
 when Russian President Vladimir Putin invaded Ukraine, undeterred by 
the intentionally ambiguous signals that the United States had sent 
during the preceding decades about the nature of its commitment to 
Ukrainian sovereignty. He was also encouraged by the perception of US 
weakness in the wake of the withdrawal from Afghanistan and dysfunction 
in its domestic politics. There is an important lesson here for US 
policymakers who might prefer to cling to strategic ambiguity when 
seeking to deter a Chinese invasion of Taiwan, for instance, or Iranian 
aggression in the Gulf. Today, more explicit statements about US red 
lines are in order. In the current environment, such statements are 
likely to help prevent rather than provoke an escalation. 
—William F. Wechsler is senior director of the Rafik Hariri Center and Middle East Programs at the Atlantic Council.
Lesson for US national security: Washington must contend with Beijing, Moscow, and Tehran at the same time 
The Biden administration came to office believing it could park relations with Russia, putting it on a “stable and predictable”
 footing while prioritizing competition with China as part of its 
national-security policy. But Moscow had other ideas: By launching the 
largest land war in Europe since World War II, Putin reminded Washington
 how much its security and prosperity is tied to peace and stability in 
Europe. The Biden administration was forced to return to the drawing 
board and rewrite its national-security strategy (which has still not 
been published more than one-and-a-half years into Biden’s term) because
 the first version gave short shrift to Russia.  
China should be a priority, but the United States remains a global 
power with global interests; its national-security strategy must reflect
 that reality. An effective approach must address the serious threats 
posed by China and North Korea in the Indo-Pacific, Iran in the Middle 
East, and Russia in Europe. Moreover, these threats are 
interconnected—with Russia, China, and Iran increasingly working 
together. Success in one of these theaters will strengthen, not sap, US 
power to deal with the others. 
—Matthew Kroenig is the acting director of the Scowcroft Center for Strategy and Security.
Lesson for military operations: Equipment doesn’t win wars. People do.
Russia spent around $65 billion on defense in 2021,
 or more than ten times what Ukraine did that year. If equipment was the
 deciding factor, Russia would have achieved the overwhelming, 
lightning-fast victory it sought months ago. But in this war, Ukraine 
has shown that good leadership and training—of which it has plenty, but 
Russia has very little—make all the difference. 
Since both countries share a long military tradition dating back to 
Imperial Russia, the difference in their respective performances on the 
battlefield (and the reasons why) are instructive. Since 1993, Ukraine 
has been part of the US National Guard’s State Partnership Program, in 
which its armed forces have been trained according to the US model of 
giving mission-type orders to junior officers and non-commissioned 
officers (NCOs), explaining the commander’s intent, and empowering them 
to make on-the-spot decisions based on the changing facts on the ground.
 No one becomes an expert combat decision-maker overnight, so realistic 
exercises are held and a culture is fostered that encourages individual 
initiative and demands rigorous assessment. This open and transparent 
way of operating has resulted in high morale and performance on the 
battlefield. 
By contrast, Russia’s armed forces (which rely heavily on conscripts)
 lack professional NCOs and discourage initiative and feedback. 
Decision-making authority remains heavily centralized, with only senior 
officers permitted to act independently. This is why so many Russian 
generals have been killed in this war; nobody at a lower level had the 
leadership experience, big-picture understanding, or authority to act 
decisively when things didn’t go as planned. The Russian way of war has 
been predictable: battlefield failure and low morale. 
—Colonel John “Buss” Barranco was the 2021-22 senior US Marine Corps fellow at the Atlantic Council’s Scowcroft Center for Strategy and Security.
Lesson for military planning: Nimble 
modern weapons can defeat larger, conventionally armed forces—especially
 when on the defensive
The United States has organized an effective “Arsenal of Democracy” 
to defend Ukraine. In the battle for Kyiv, Russian tanks, troop 
carriers, supply trucks, helicopters, and fighter aircraft were 
demolished by small and mobile Ukrainian defensive units armed with 
weapons such as Stingers, Javelins, NLAWs, and drones. A platform-heavy,
 twentieth-century Russian force was defeated handily by a light 
twenty-first-century one. In the battle for the Donbas, Russia’s 
twentieth-century artillery greatly outnumbered Ukraine’s 
artillery—until fairly small numbers of new American-made Highly 
Mobility Artillery Rocket System (HIMARS) were introduced. Their 
precision-strike capability destroyed scores of Russian ammunition dumps
 and headquarters, among other units, thereby slowing the Russian 
advance. And in the Black Sea, Russian naval vessels vastly outnumbered 
the remnants of the Ukrainian Navy—until accurate Ukrainian-made Neptune
 and American-made Harpoon missiles were introduced, forcing the Russian
 Navy to retreat. These were all essentially defensive situations for 
Ukraine.
Now Ukraine will seek to regain as much of its occupied territory as 
possible, but it will not be easy. Ukrainian forces will use many of 
these same precision-strike systems to try to regain Kherson and the 
Donbas, but they will also be advancing against strong Russian defensive
 positions. This worked well initially for American forces two decades 
ago when taking offensive action against Iraqi insurgents and Afghan 
insurgents, but it remains to be seen whether Ukrainian forces can pull 
off the same feat. The outcome will determine whether Putin can claim 
some degree of success in his ruthless adventure.
—Hans Binnendijk is a distinguished fellow at the Scowcroft Center for Strategy and Security.
Lesson for deterrence: Troop deployments work better than threats of economic sanctions
As Russian troops assembled to invade Ukraine early this year, many 
defense analysts believed the threat of severe economic sanctions would 
be enough to deter a Russian attack. But for Putin, revanchist 
territorial aims outweighed any potential harm that might be done to the
 Russian economy through Western sanctions. While great damage has been 
done to the Russian consumer economy, the ruble has strengthened and 
foreign reserves have increased due to high oil prices and shifting 
Russian markets. Putin’s judgment appears to have been correct, at least
 in the short term. 
NATO leaders had made it clear that they would not commit troops to 
defend Ukraine, which led Putin to miscalculate on two 
fronts—underestimating Ukrainians’ ability to defend themselves and the 
West’s willingness to rapidly arm them. So Western defense officials 
have relearned a Cold War-era lesson: What deters Russian aggression is 
NATO troops on the Alliance’s eastern flank, not the threat of economic 
sanctions. It’s possible that if Alliance troops had deployed to 
Ukraine, it could have deterred the invasion; but they may have also 
started World War III. Deploying troops forward on NATO territory now 
will assure that Putin does not miscalculate again.
The cornerstone of the recent NATO summit was an effort to absorb and
 implement this lesson. NATO’s deterrent posture is shifting from 
“deterrence by punishment” to “deterrence by denial,” and allied forces 
are being positioned forward to deny Russia’s ability to occupy any bit 
of NATO territory. Battalion-sized NATO battle groups have now been 
deployed to eight frontline allies, and American forces in Europe have 
increased to one hundred thousand. Many believe that even more needs to 
be done to assure deterrence by denial—for example, by deploying 
brigade- or even division-level NATO forces to frontline allied 
countries. 
—Hans Binnendijk is a distinguished fellow at the Scowcroft Center for Strategy and Security.
Lesson for the global economy: The new tools of conflict are economic—and they are powerful
When Russia invaded Ukraine, President Biden made clear that the 
United States would not directly intervene militarily. But that didn’t 
mean the United States and its allies were left without recourse; 
instead, the Group of Seven (G7) nations decided to freeze approximately
 $350 billion in Russian assets. To put that in perspective, it’s 
roughly the size of Austria’s entire economy. The move shocked Russian 
President Vladimir Putin and his central bank, putting enormous pressure
 on the Russian economy. It also turned heads around the world: Most 
countries hold some reserves in dollars and euros, and now they’re 
thinking hard about the risks to those assets in the event of a future 
crisis. But since the United States, Japan, the European Union, and the 
United Kingdom are aligned, countries don’t see many alternatives (for 
now). China’s renminbi is not yet a viable option as a true 
international currency. So what’s the takeaway going forward for the 
global economy? The United States—and the dollar—are stronger with 
allies.
—Josh Lipsky is the senior director of the GeoEconomics Center.
Lesson for economic statecraft: Don’t separate sanctions from longer-term foreign-policy objectives
In the run-up to invasion, great hope was placed on sanctions as the 
primary tool with which to deter Russian aggression. Putin, the 
widespread thinking held, could not possibly want to ruin his economy 
for the sake of murdering Ukrainians. But rationality is a concept that 
can be perilously difficult to nail down, and economic rationality was 
not a factor in Putin’s plans for Ukraine. Sanctions as a deterrent were
 worth the effort but were ultimately not going to stop the invasion. 
This lesson needs to remain front-of-mind during what is likely to be
 a long war. The inability of the West to use sanctions to prevent war 
does not mean they are a useless gambit; instead, they should constitute
 a strategy for longer-term goals. Any tactical advantages that accrue 
from sanctions should be considered positive externalities, not an 
explicit end goal. Those policy goals should remain what Biden discussed
 in late February: that sanctions are meant to isolate Putin and his 
regime so long as Putinism remains the dominant form of rule in Russia. 
There is no going back to the pre-war period, in which many in the West 
clung to the idea that trade could integrate Putin’s Kremlin into a 
rules-based system. Only after Putinism—the primary driver of Russia’s 
external aggression—is gone should the West use the leverage of lifting 
sanctions to allow for Russia’s economic reintegration.  
—Brian O’Toole
 is a nonresident senior fellow at the GeoEconomics Center and worked at
 the US Department of the Treasury as a senior adviser to the director 
of the Office of Foreign Assets Control.
Lesson for economic statecraft: Sanctions work, but they are messy and take time
Policy tools are generally imprecise. When they work, which is not 
always, it is seldom in accord with the clean outcome or short timeline 
often promised in a US State Department or National Security Council 
policy paper. This is especially true with sanctions, which can be 
intended to weaken an adversary over time. 
These are the purposes of the current sanctions against Russia, which
 resemble the clumsy, contentious, and inconsistent economic measures 
imposed against the Soviet Union after its invasion of Afghanistan in 
1979. While these measures did not cause the USSR to collapse, they made
 it harder for the Soviet leadership to escape the consequences of the 
unreformed Soviet economy’s weakness. They took away the Western 
investment, technology transfer, and loans and credits that had propped 
up the Soviet economy and masked the rot within. The resulting economic 
trouble became obvious even to regime supporters by the early 1980s.
Putin’s decision to wage war on Ukraine may bring similar results. 
Technology restrictions have hurt Russian industrial production. New 
financing and investment from the West is basically unavailable. And, 
one way or another, Russia’s income from exports will decline. Time is 
not on Ukraine’s side, which is why the country needs more military 
assistance (or the sharp edge of policy). But Putin has chosen to wage a
 dirty war and make the West an enemy; sanctions and other means of 
economic pressure may make his choice seem like folly, in addition to 
evil.
—Daniel Fried is a Weiser family distinguished fellow at the Atlantic Council and a former US ambassador to Poland.
Lesson for wartime strategic communications: Influence operations are a day-in, day-out job
Despite the challenges it faces, the Ukrainian government 
successfully created and continues to implement a 
strategic-communications plan to galvanize international support, 
denigrate Russia, and inspire confidence in its ability to lead the 
country. Conducting this type of campaign isn’t sexy: It’s a grind—day 
in, day out—to share talking points with communicators, identify 
audiences to persuade, pull together data, and then connect with 
journalists, political figures, and influencers who can further spread 
the government’s message. But the beauty of what the Ukrainians have 
accomplished is that a vast network of people who follow the 
government’s messaging lead and further spread the campaign in ways that
 their individual networks can understand—thus building new advocates 
and reinforcing Ukraine’s base of support.
Although President Zelenskyy is the focal point of this campaign, 
he’s in no way the only person who has remained on-message. Everyday 
people around the world (not just Ukrainians) feel empowered to advocate
 for Ukraine and disparage Russia. Images that include the blue and 
yellow of the Ukrainian flag, sunflowers, and children holding anti-war 
signs are so widely established that social-media posts that include 
these types of visuals no longer require any explanation. In large part,
 the Ukrainian government uses firsthand accounts and video clips as 
evidence, which further reinforces its message; and crucially, it has 
not resorted to large-scale mis- and disinformation as Russia has. 
Overall, the cohesion and duration of the Ukrainians’ campaign can, and 
should, be used as a template for what the United States and its allies 
can accomplish with an influence strategy, communications discipline, 
and a willingness to grind day-in, day-out to meet the end goal. 
—Jennifer Counter is a nonresident senior fellow at the Scowcroft Center’s Forward Defense practice.
Lesson for hybrid warfare: Don’t ignore the fundamentals 
By almost every measure, Vladimir Putin’s “special military 
operation” has been a strategic failure. While still dangerous, Russia 
is arguably at its lowest point of soft influence in recent history, 
with pushback coming from neutral nations and even ones dependent on 
Russian energy. Russian war crimes have been laid bare for the world to 
see and repudiated by all but the Kremlin’s most stalwart allies. NATO 
resolve is stronger today than many could have ever imagined. Russia has
 lost its dominance of the narrative and is instead regularly trolled by
 Ukraine, which offers an alternate example of executive leadership in 
Volodymyr Zelenskyy. Every day that Ukraine continues to resist, albeit 
at horrific cost to its people, amounts to an incremental humiliation to
 Russia, squarely countering its ever-aspirational status as a “great 
power.”
Much of the current condition has resulted from the Kremlin ignoring 
the fundamentals of warfare, including lessons openly observable from 
recent US forays in Afghanistan, Iraq, and elsewhere. First and foremost
 has been the poor utilization of intelligence, starting with Russia 
choosing the more kinetic end of the spectrum instead of focusing on its
 more adept gray-zone activities. In doing so, Russia’s intelligence 
apparatus miscalculated both the resolve and capability of Ukraine, as 
well as the level of support for Ukraine from the international 
community. This has contributed to staggering Russian losses on the 
battlefield and horrors against the Ukrainian people perpetrated by an 
unprofessional Russian military. There have also been similarly poor 
results in the function of sustainment (the military term for keeping 
operations going until objectives are achieved).
Hybrid warfare is akin to a scalpel, not a knife, in pursuing 
strategic effects—and that level of precision requires robust awareness 
provided by a competent intelligence community that must be trusted to 
deliver bad news. Russia’s authoritarian governance model is poorly 
suited to this. Similar shortcomings have resulted in poor control of 
the information domain: Russia’s “Z” and “anti-Nazi” campaigns have been
 easily countered by a competent Ukraine that clearly knows its 
adversary and is able to effectively respond to its messaging through 
social-media campaigns coupled with broader outreach to the global 
community. In looking at Russia’s experience, the United States and its 
allies should ensure that the fundamentals of waging (hybrid) warfare 
are not ignored.
—Arun Iyer is a nonresident senior fellow at the Scowcroft Center for Strategy and Security’s Forward
 Defense practice and served in a variety of operational and operational
 leadership assignments in the US Department of Defense from 2005-2020.
Lesson for the energy sector: Decades of energy diplomacy can disappear with one brutal invasion
Efforts to draw Russia into the democratic fold of its Western 
neighbors through decades of economic integration and trillions of 
dollars of energy trade failed to prevent a brutal, senseless war in 
Ukraine, as well as the Kremlin’s weaponization of energy supplies 
across Europe. As a result, European energy systems are transforming in 
record time toward operating without Russian oil and gas. This 
unprecedented shift is neither cheap nor easy, and will take years to 
achieve in countries hooked on Russian energy and reliant on 
carbon-intensive economies.
In the meantime, skyrocketing energy costs, mandated curtailments, 
and general uncertainty around energy supplies this winter will fuel 
temptations to slide back into the yoke of Russian energy dependence. 
But the risks of returning to the status quo of energy diplomacy with 
Russia monumentally outweigh any short-term relief that the Kremlin 
could offer through its supply blackmail. That’s because Moscow’s 
nationalization of the Russian energy industry leaves little room for 
market-based decisions, while geopolitical priorities (often aggressive 
ones) take precedent. Supply shut-offs and curtailment across Europe 
have shattered Russia’s veneer of reliability, while the country has 
doubled down on the unabated fossil-fuel economy rather than investing 
in diversification.
Regardless of the war’s conclusion and potential leadership changes 
in Russia, the de-Russification of European energy sources is heading 
toward a point of no return. The short-term costs and challenges of this
 massive transformation cannot be underestimated. But forging reliable, 
resilient, low-carbon, and affordable energy systems—ones that can’t be 
threatened or manipulated by monopolistic suppliers—will benefit all of 
European society.
—Olga Khakova is the deputy director for European energy security at the Global Energy Center.
Lesson for global intelligence: Russia is not ten feet tall 
Six months ago, there was a plethora of doom-and-gloom analysis: The 
notion that the Russian military believed it could take Kyiv in 
thirty-six hours was reportedly shared not only by Putin but also by 
Western academic and intelligence-community analysts. Almost everyone 
got this fantastically wrong. Except, of course, the one entity that 
mattered most: the Ukrainians, who fought bravely and nearly unanimously
 believe they’ll win. A quick Russian blitzkrieg turned into a morass 
that will go down in military history, with 80,000 Russian casualties 
and no end in sight to Putin’s “special operation.” Now we see that the 
Russian military is a Potemkin village—corrupt, unfit, and fundamentally
 lacking in basic principles of logistics.
Equally important, Russian hybrid-warfare efforts in 
Ukraine—particularly in the information-operations space—have also 
fallen short. Previous efforts around the world, such as Moscow’s 
meddling in the 2016 US presidential election, had spooked many (and 
perhaps for good reason). But Russia succeeded in the past mainly 
because it operated without pushback. No longer: Ukraine now appears one
 step ahead at every turn. Consider the Ukrainian Defense Ministry’s 
expert trolling on Twitter after a presumed strike by Ukrainian forces 
on a Russian airfield deep in occupied Crimea: It showed Russian 
tourists fleeing the beach to the sound of the 1983 Bananarama track 
“Cruel Summer.” How times have changed: Ukraine trolling Russia, not 
vice versa. This is exactly what was needed in the 
information-operations sphere: an offensive strategy that was proactive 
instead of reactive. 
—Marc Polymeropoulos is a nonresident senior fellow in the Forward
 Defense practice of the Atlantic Council’s Scowcroft Center for 
Strategy and Security and worked for twenty-six years at the Central 
Intelligence Agency.
Lesson for would-be invaders: You can’t hide preparations for a full-scale invasion
In the four months leading up to the invasion, Kremlin-owned online 
outlets increasingly reported that Ukraine was preparing to attack the 
eastern Donbas region—or even Russia itself. The DFRLab monitored these 
open sources on a daily basis to measure the frequency of this 
messaging; in the pre-invasion period, Russian online coverage of the 
narrative about an impending Ukrainian attack rose dramatically,
 with a nearly 50 percent increase in January 2022 over the previous 
month. The narrative also became increasingly hostile—accusing Ukraine 
of planning a chemical attack in the Donbas, for example. Meanwhile, 
footage from social media, particularly Telegram and TikTok, documented 
ongoing Russian troop movements and deployment along Ukraine’s border.
The spread of hostile Kremlin narratives in those final months before
 the invasion were in sync with the spread of Russian troops on the 
ground, with Russia essentially preparing domestic and international 
audiences for the invasion alongside actual military preparations. 
Through the combined open-source intelligence analysis of Russia’s 
behavior both online and offline, it became clear that Putin’s 
intentions were hiding in plain sight. 
—Eto Buziashvili is a Georgia-based research associate for the Caucasus at the Atlantic Council’s Digital Forensic Research Lab.
Lesson for cybersecurity: The private sector should play a critical military-operational role in cyberspace
The information revolution has long been credited with changing key 
aspects of warfare.  Network-centric operations, cyber offense and 
defense, and online information operations are now established elements 
of military doctrine and operations. But Russia’s invasion of Ukraine 
has generated a new role for the private sector, which is engaging in 
direct cyber combat against Russian cyber attacks and in support of 
Ukraine’s military and governmental functions.
While Ukraine has its own capable cyber defenders—who, for example, stopped an attack
 against the Ukrainian electric grid—those efforts have been 
complemented by private-sector firms that have worked with Kyiv both by 
helping to identify and disable malware and by taking additional actions
 to create a much more defensible Ukrainian cyberspace. Both Microsoft 
and Cisco have published reports detailing defensive cyber efforts and 
European cybersecurity firms such as the Slovakian firm ESET have also been engaged. Ukraine’s cybersecurity defense has additionally been enhanced through the use of Starlink terminals and the transfer of Ukrainian governmental functions to cyber clouds outside Ukraine.
 The actions that these private companies have undertaken foreshadow the
 critical role such firms will play in future twenty-first-century 
conflicts.
Going forward, the United States, NATO, and the democratic nations of
 the Indo-Pacific need to organize appropriate planning and operational 
collaborative mechanisms with key elements of the private sector to 
assure effective operation of cyberspace in the event of armed conflict.
 The United Kingdom’s National Cyber Security Center and the more recent
 US Joint Cyber Defense Collaborative are a good start, but those are 
not currently suited to the challenges of full-scale combat. Maintaining
 the functioning of information technology in wartime—particularly for 
critical infrastructures such as energy, food, water, transportation, 
and finance—will be an indispensable requirement for nations as a whole,
 as well as for effective military operations. Working in advance to 
assure the coordination of the intelligence and operational capabilities
 of the private sector with those of the government will be critical to 
the effective defense of cyberspace.
—Franklin D. Kramer
 is a distinguished fellow and board director of the Atlantic Council, 
and has served as a senior political appointee in two administrations, 
including as assistant secretary of defense for international security 
affairs.
Lesson for US homeland security: Ignoring the home front is a serious mistake
After an initial burst of activity
 culminating in late April and early May, efforts by the US Department 
of Homeland Security (DHS) to counter Russia’s hybrid war in the United 
States appear to have faded—even amid a Russian “avalanche of disinformation,” as the Atlantic Council’s Digital Forensic Research Lab has documented. The last update to the Cybersecurity and Infrastructure Security Agency’s “Shields Up” webpage was dated May 11, and the most recent entry in CISA’s “Russia Cyber Threat Overview” was dated April 20. The last Russia-specific public alert, “Russian State-Sponsored and Criminal Cyber Threats to Critical Infrastructure,” was revised May 9. 
While DHS and the FBI are in frequent communication with agencies, 
companies, and individuals targeted by Russian cyberattacks, the public 
is often unaware of this quiet but vital activity. So more needs to be 
done by DHS and others to get the American people to understand and 
better resist the Russian hybrid-warfare campaigns that promote divisive
 propaganda and social-media manipulation. Russia’s hybrid-warfare 
strategy, which uses disinformation even more than cyberattacks, seems 
designed to wear down Western democracies’ opposition to Russia’s 
aggression. Senior DHS and administration officials should speak out 
more publicly on what Americans can do to counter Russian 
disinformation, cyber threats, and other Russian hybrid-warfare 
targeting of the civilian population. The home front—specifically, unity
 in the United States and NATO in opposing Russian aggression against 
Ukraine—is a vital source of national power. Ignoring it, or treating 
Ukraine as almost entirely a military and diplomatic crisis, could be a 
perilous mistake.
—Thomas S. Warrick is a nonresident senior fellow at the Scowcroft Center for Strategy and Security’s Forward Defense practice.
Lesson for US assistance policy: Invest deeply in key resilient partners
Even as Washington sends billions of dollars’ worth of arms to 
Ukraine amid the ongoing war, it should also be planning for long-term 
security assistance to the country. The goal must be to ensure Ukraine’s
 ability to deter future aggression (and repel it if it comes). This 
will be an enormous undertaking; but like insurance, the costs pale in 
comparison to those of another round of war. 
President Zelenskyy sees his country developing into
 “a big Israel,” and the model of US assistance to Israel also applies 
here. US partners who are on the front lines of competition with Russia 
and China need capabilities—from missile defenses and anti-tank weapons 
to superior intelligence and counterintelligence—that enable them to 
absorb and survive strikes by adversaries. They also must have the 
ability to impose unacceptable costs on the aggressor. 
In the post-war era, building a Ukrainian air force, missile corps, 
and special forces that can defensively strike behind Russian lines will
 be essential. Annual appropriations, excess defense articles, and 
prepositioned US stocks for emergency use are all tools that can be 
employed to this end. Supporting the growth of a domestic industry that 
develops and produces innovative Ukrainian solutions to Ukrainian 
vulnerabilities will also be key. This approach reinforces a requirement
 that must accompany such assistance: the willingness and ability of 
Ukraine to defend itself on its own, which is something its citizens 
have already demonstrated in spades. This also means that, in extremis, 
US interoperability with a key partner will be assured.
—Daniel B. Shapiro is a distinguished fellow at the Atlantic Council’s Middle East Programs and a former US ambassador to Israel.
Lesson for NATO: The Alliance is a uniquely valuable institution that requires enduring political and financial investment
NATO is a sometimes-arcane institution where disagreement and drama 
are routine occurrences among a membership that will soon reach 
thirty-two members. Accordingly, the Alliance can be an easy target for 
politicians seeking to score points domestically, with the presidents of
 the United States and France having called into question NATO’s utility
 and purpose in the recent past. But these critiques inevitably overlook
 the outsize role NATO has played in enabling peace and prosperity in 
Europe (and beyond). It’s no coincidence that large-scale war is again 
raging in Europe within years of NATO’s most important members openly 
questioning whether it had outlived its usefulness; Putin read American 
and French disillusionment with NATO as a lack of commitment to the 
Alliance and an opportunity to permanently rupture transatlantic unity. 
Fortunately, the habits of cooperation that the transatlantic 
community has developed over seven decades are not easily displaced—and 
NATO is once again showing its indispensability as a political and 
military actor. It’s a lesson that political leaders must absorb even 
after the resolution of Russia’s war in Ukraine. Had NATO not existed as
 the current crisis unfolded, the breathtaking levels of cooperation 
currently on display among allies in support of Ukraine and in 
strengthening deterrence in Europe would not be possible. Rather than 
using NATO as a punching bag, leaders must expend the political and 
economic capital to keep the Alliance healthy and adaptive.
—Christopher Skaluba is the director of the Scowcroft Center’s Transatlantic Security Initiative.
Lesson for Ukraine: There’s no way back for relations with Russia
Since the collapse of the Soviet Union, bilateral ties between 
post-Soviet Ukraine and Russia have been colored by centuries of 
imperial baggage. While this complex relationship became particularly 
thorny after Russia’s seizure of Crimea in 2014, a significant number of
 Ukrainians continued to harbor positive attitudes toward Russians, 
while political parties advocating a thaw in bilateral ties remained 
popular in traditionally Russophile regions of Ukraine. All this changed
 dramatically on February 24.
The unprecedented devastation caused by the invasion has completely 
transformed Ukrainian perceptions of Russia, particularly in formerly 
Moscow-friendly (and now heavily bombarded) parts of eastern Ukraine. 
The sheer scale of the violence, which has included widespread war 
crimes, has been a traumatic wake-up call for the many Ukrainians who 
still clung to notions of Russia as a brotherly nation. At the anecdotal
 level, it is now routine to encounter Ukrainians struggling to come to 
terms with Russia’s betrayal, or expressing pure hatred toward the 
Russian people as a whole. Many Ukrainians are no longer able to engage 
with Russian relatives, while growing numbers are ditching the Russian 
language and switching to Ukrainian. Recent opinion polls reflect the 
profound nature of these changes, with Ukrainian backing for 
Euro-Atlantic integration skyrocketing and support for closer ties with 
Russia collapsing to record lows. The war is far from over, but it’s 
already clear that the relationship between Russians and Ukrainians has 
been irrevocably damaged. 
—Peter Dickinson is the editor of UkraineAlert.
Lesson for China: Today’s Ukraine is not tomorrow’s Taiwan 
Chinese strategists believe the United States’ strategic ambiguity 
over Taiwan is dead in all but name, as demonstrated by Biden’s repeated
 gaffes about Washington’s willingness to defend the island through 
force and US House Speaker Nancy Pelosi’s recent visit there. They 
believe that if a war breaks out in the Taiwan Strait, Washington will 
“fight till the last Taiwanese”—just as it has been seen as doing in 
Ukraine against Russia—in a proxy war to contain Beijing, mobilizing its
 allies along the way to support the effort.  
Yet even while the West has been able to inflict painful punishment 
on Russia’s economy, Putin’s war shows that sanctions are a double-edged
 sword, especially when it comes to China, the world’s second-largest 
economy. Beijing has been keeping a close eye on 
European citizens, who are shouldering record-high inflation and surging
 electricity prices ahead of a potentially very cold winter. Chinese 
officials’ relentless push for economic liberalization serves as more 
than just a means of gaining from globalization; it also acts as a 
signal to the West over China’s core interests, warning: “If I go down, 
you’re going with me.”
From Beijing’s perspective, political, diplomatic, and economic 
retaliation against pro-independence actions in Taiwan—when coupled with
 the threat of a total military blockade and China’s nuclear 
saber-rattling—can serve as a credible deterrent that puts the onus of 
escalation on the enemy (in this case, the United States). Therefore, 
Beijing will act under the assumption that, in the event of a war in the
 Taiwan Strait, time and momentum are on its side, meaning that the 
price the Chinese people are willing to pay for Taiwan is significantly 
higher than that of Western constituents. 
—Tuvia Gering is a nonresident fellow in the Atlantic Council’s Global China Hub.
Lesson for Middle East policymakers: America will always do the right thing, but only after exhausting all the alternatives
While this adage is often attributed to Winston Churchill, there’s 
actually no record of him ever saying it. Nevertheless, it has long 
resonated with Washington’s foreign partners and allies, who have been 
repeatedly frustrated by the inconsistencies and inactions that have too
 often characterized US policies over the decades. Most recently, 
leaders from the United Arab Emirates publicly expressed their 
disappointment that the Biden administration didn’t respond quickly 
enough when Houthi rebels attacked the Abu Dhabi airport in January; and
 similarly, Saudi leaders were aghast when the Trump administration 
didn’t respond after Iran attacked the country’s energy infrastructure 
in 2019.  
But the Biden administration’s strong and unwavering response to 
Putin’s invasion of Ukraine has proven, once again, that the United 
State can indeed be relied upon—especially when confronted by a globally
 resonant crisis on a scale that necessitates American leadership. That 
lesson has not been lost on leaders in Taipei or Beijing. And leaders in
 the Middle East who are inclined to doubt American resolve should note 
that Washington has taken powerful and economically painful actions to 
support Ukrainian sovereignty, even though no treaty committed the 
United States to this in advance (just as there was no treaty that 
required the United States to come to Kuwait’s defense when Saddam 
Hussein invaded the country). Rather than demanding such commitments, 
American partners in the region would be better advised to work with the
 Biden administration to think through scenarios that might require a 
similar US response, and to work together to build interdependent 
capabilities to deter them. 
—William F. Wechsler is senior director of the Rafik Hariri Center and Middle East Programs at the Atlantic Council.
Lesson for Germany and its allies: Seize this moment for a strategic reversal 
Putin’s war in Ukraine was a rude awakening for decision-makers in 
Berlin and for average Germans from Hamburg to Munich. Decades of 
divestment from both hard power and energy diversification, plus the 
strategic detachment with which Germany had pursued its global 
engagement, came home to roost. This left Europe’s largest economy 
exposed to energy blackmail by Moscow and with few options to shore up 
NATO as the cornerstone of its own defense or hold Putin at arm’s length
 by supporting Kyiv with weapons.  
Lofty pronouncements by Chancellor Olaf Scholz about boosting his 
country’s defense capacity have, in reality, been tough to follow with 
actual action. This is especially true for arms deliveries to Ukraine or
 Bundeswehr boots on the ground to strengthen NATO’s eastern flank. On 
the energy front, the jury is still out on whether a mix of government 
intervention, conservation efforts, the rapid deployment of liquid 
natural gas terminals, and even a potential pause of Germany’s exit from
 nuclear power can help avert the worst for Europe’s economic engine. 
Berlin’s credibility as a reliable NATO and EU ally has taken a severe 
toll, especially in Eastern Europe.       
Moving forward, the transatlantic partners will need a more strategic
 Germany—politically, economically, and militarily—as everyone prepares 
for a long-term confrontation and competition with Moscow and other 
autocrats. The indisputable failure of cornerstones in German foreign, 
defense, and energy policies extends beyond Berlin decision-makers, many
 of whom have long lamented in private their country’s lack of global 
leadership. The United States and European allies should seize on 
Germany’s existential crisis as an opportunity for a reset and engage 
German policymakers in concrete initiatives. They should demand and 
support new German leadership in key areas, such as NATO’s eastern 
defense, Europe’s energy transition away from Russia, and new efforts on
 both sides of the Atlantic to reduce economic and technology 
dependencies on any one actor. The experience of the last six months—and
 what is to come this winter—can help Germany develop a new leadership 
role that advances European and transatlantic objectives.
—Jörn Fleck is the acting director of the Europe Center, and Rachel Rizzo is a nonresident senior fellow at the Europe Center.