I have a mate who says that ww2 has, sadly. given us the stupid idea of a "just" war, and I always thought of it like this. I can be as stupid as the next guy.
For example, I reckon declaring war on Hitler was the correct thing to do.
But ww1 was a different matter, and Germany didn't deserve to be treated so badly after the "loss" that they turned to Hitler.
Here's some trivia about the start of ww1: The poms were NOT WANTED as they were on the nose in Europe after the Boer War. They invented concentration camps in the modern world.
They were lucky to be allowed into all the fun.
The stupidity of the Germans in allowing their allegiance with Austria to overcome their common-sense is impressive , but I do believe the historian guy
who said that germany ( 30% ) was not nearly as responsible for WW1 as the poms were, at 60%. Germany wanted out in 1915 but the poms were having too much fun.