That's not what I mean. War is never about one thing. Everyone's in it for a reason, and it's not all the same reason. There's people who are fighting it for the right reasons, sure, but there are also people who have political reasons, grudges, profits to be made from it. There's propaganda that labels people who are fighting for their freedom as terrorists. War gets all sorts of complicated.
Not saying you shouldn't be fighting back against genocide. Course you should. Just make sure you're looking at all the players, their motives, don't let them mislead you and your good intentions. Don't let them mislead the people around you, either. Always think it through, the right and the wrong and the consequences. All of it.