This concept is so disingenuous. The earth is is big enough for Russian, China, and the US to coexist in peace. My country's spending should be spent in my country. Not liberating a land that has nothing to do with us.
I'd also cite John Donne and say "no man is an island". Our "country" exists as an arbitrary artifact of history. If you are capable of caring about people you don't know then it shouldn't matter if they're from another state or another country.