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
Especially when the enemy of your friend is also your enemy.
See, much easier when you just admit that you’re fueling the meat grinder to weaken your geopolitical rival