Next, Trump and Russian President Vladimir Putin agreed that the U.S. and Russia would negotiate an end to the war in Ukraine — without Ukraine’s or Europe’s involvement. And then came Vice President JD Vance’s speech at the Munich Security Conference, where he said that the biggest threat to Europe wasn’t Russia or China but “the threat from within, the retreat of Europe from some of its most fundamental values.”

Finally, at the end of the month, Trump and Vance confronted Ukrainian President Volodymyr Zelenskyy in the Oval Office, on live television. “You don’t have the cards,” Trump exclaimed, berating Ukraine for failing to end a war it had not started, and ignoring how Ukrainians had valiantly held off their subjugation and occupation by a much larger foe for more than three years.

So, by February’s end, Europe’s denial turned to anger.

When I met with a foreign minister of a major ally just days after Munich, the longtime supporter of the U.S. appeared despondent. “You stabbed us in the back. You’re leaving us to deal with Russia alone,” he shouted.

But the anger lasted only so long, and in the next few months, the bloc shifted to bargaining. Key European leaders convinced Zelenskyy to forget about the Oval Office showdown and tell Trump he was fully committed to peace. Europe would then join Ukraine in supporting an unconditional ceasefire — as Trump had demanded.

In August, stage three — bargaining — quickly gave way to stage four — depression. | Tom Brenner for The Washington Post via Getty Images

Similarly, in April, when Trump announced his “Liberation Day” tariffs, hitting allied countries just as hard as non-allies, the U.K. and the EU moved swiftly to negotiate deals that would lower rates from the initial levels of 25 percent or more.