World War 2 of course, it was the first to use nuclear weapons and the only War which France was conquered by the Germans completely.
world war 1
world war 2
The two biggest wars that started in Europe were World War I and World War II.
the biggest war of all is world war 2 but most people say it was the civil war p
I am not being facetious: The biggest effect of World War I was World War II.
World War one was the first great war. It was the biggest war the world had seen and involved many countries.
world 2 war
World War I was the biggest war in memory for the people during that time period. I believe they called it the war to end all wars. They hadn't had World War II yet, and so they though that World War I was going to be the biggest war in history for all time.
Germany
Poland.
It was the biggest war throughout history of the entire world.
The two biggest wars in modern history that started in Europe were World War I and World War II.