The U.S. has pressured Ukraine to withdraw its European-backed U.N. resolution demanding an immediate withdrawal of Russian forces from Ukraine in favor of an American proposal that doesn't mention Moscow’s invasion.

The United States wanted the resolution replaced with a toned-down version that felt overly sympathetic to Russia, an official said.

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,