Sometimes a war is justified, and coming to the aid of an ally getting invaded is a damn good justification.
Especially if that ally is simply asking for more hardware and not asking for feet on the ground.
Edit: Fixed the link, it was broken for some reason though it worked earlier today. IDK this mirror should work though
In case it's unclear, I'm not calling you a shitlib, I'm saying that the people you're criticizing act like shitlibs (and frankly most of the time they are just shitlibs). General support of wars of defense is an anti-imperialist position