What is more stupid than a war stopping another war?

Good thing you weren't around for Nazi Germany.

Another war to stop the war stopping the war

The people who starts them. And don't go fight in them themselves. But send everyone else to go fight. expect their family members. Not only stupid but very Evil.

Pacifism...

"The only thing necessary for the triumph of evil is for good men to do nothing." - Edmund Burke

Endless wars.