When you win the war it doesn't mean you will be happy after. There is the illusion of winning. Media and politicians rejoice and party, screaming: "We win, We win. We'll be richer, we'll become fatter and more people are now enslaved to us".
This is how they think.
If you are on the front lines you realize that the guy you killed is a guy just like you with the same hopes and dreams, maybe a different skin color or clothes but that is the truth. You got tricked into killing yourself. You won but it's A Sad Victory.