If all you have is a hammer, every problem starts looking like a nail. The US knows two outcomes to war: Complete victory, or fucking off without signing any peace treaty.
Ukraine, confronts Washington with the secret third outcome: Admitting NATO lost and make peace. Judging from the recent Ukrainian offensive, Washington is not inclined to accept reality. Better herd some more Ukrainians into the firing lines.
The big media liked what he did, so he got praised to heaven.