From what I can understand that is the Biden doctrine, support liberal democracies, not strongmen and it make perfect sense. Ukraine offers an example of its power, it even worked for the Russians in Vietnam, which was a war of independence to them, in their view the Americans just replaced their French imperial masters. So, betting on nations united by external threats and determined to defend themselves with large popular support, is a pretty good bet. Ukraine is the best bet Uncle Sam ever had in terms of bang for the buck. Think about it, just a minuscule portion of the US total arsenal was sent to Ukraine, a tiny amount of aid compared to the annual military budget. Look at the payoff though, America's main military adversary destroyed on the battlefield both in reality and myth by a highly motivated NATO trained and structured force. The used mainly old soviet weapons on par with the Russians to do a lot of it too. Vlad is on the ropes and now in an existential struggle, so Sammy also got retribution for Russia fucking with the elections and helping to impose Trump on America. Sam should dance on Vlad's corpse for inflicting Trump on ya!