Europe is rearming. Defense budgets are rising, ammunition production is increasing, and new investments are being announced across the alliance. But no amount of spending substitutes for knowing how to use force under the pressures of modern war. It cannot buy what Ukraine has already paid for in blood.

As we get closer to a new American Presidency and increased talk of how to end the war in Ukraine, we must not forget the reason we need to continue our support for Ukraine. The conflict in Ukraine, ignited by Russia's unprovoked invasion, is not merely a regional dispute. It's a pivotal moment in history, a test of the global order and the principles of territorial integrity and national sovereignty.