Hardly fair Curtain Rod; the American commitment (and losses) in WW1 and 2 can hardly be disputed, and we should just be grateful they brought American might, muscle, and their unrivalled industrial complex to the party in the 20th century; or we'd all be wearing lederhosen and goose stepping down the Strand. To say nothing of what would have happened to every sort of minority you can name, Synti, Roma, Jews etc etc.
Now the question is what happened post Roosevelt/ Eisenhower ? No longer the same wars, not even the same type of war anymore. So acting as the words' policemen has become ever more problematical.
Now, a similar list of Brit F@@K UPS would be interesting. I think there are very few countries on the planet that we havent tried to invade/ piss off/intervene. Usually disastrously. Suez ? Basra ?
Don't worry, our friends over the border will be finished with their plans for the South China Sea quite soon, and then we can all stand back and watch the games commence.