The U.S. has been Ukraine’s biggest military backer since Russia’s full-scale invasion began three years ago. The suspension of that aid by the Trump administration doesn’t mean Ukraine’s defenses will quickly collapse.

Pausing military aid is the most damaging move the Trump administration can make to Ukraine’s war effort, and however opaque the immediate practical consequence may be, the psychological impact for Ukrainians has been immense and catastrophic.

Officials in Kyiv, however, said they were grateful for vital U.S. help in the war and want to keep working with Washington.