I strongly urge you to attend a history class, because only part of that is comparable to funding international wars for no gain or defensive reason. If the America of 1943 had the choice between its people or Ukraine, it would choose its people. Because that’s literally what we did while England and Poland was being bombed by the Nazis. It wasn’t until the Japanese made us get involved that we did anything. The closer example to now is indeed the cold war, but a lot of the “war on communism” was not only incredibly disruptive to smaller countries, and its efficacy over the long term was questionable, especially considering the USSR died out naturally.