Following a dramatic meeting in the White House, U.S. military support for Ukraine is perilously uncertain. Sustaining Ukraine in this war, and afterwards, is a responsibility that Europe will have to shoulder sooner rather than later. Washington may now cut support for Ukraine well before any agreement is reached and try to compel Ukraine to accept an unstable ceasefire. This will leave Ukraine in a perpetual state of insecurity, and Europe bracing for a possible renewal of the war. There is a