The deafening booms of the first airstrikes. Buildings bursting into flames, reduced to rubble. Terrified people hiding in basements. Cries of despair and hugs of support. This was the reality of Feb.

Ukraine enters the fourth year of all-out war with Russia on Monday, unsure it can rely any longer on its staunchest ally the United States as its exhausted troops fight to hold their ground against unrelenting enemy advances.

Ukraine and its European allies are stunned and scrambling to adapt to the new approach from the United States. In the three years since Russia launched its full-scale invasion, Ukraine has lost swaths of land,