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.
The two biggest wars in modern history that started in Europe were World War I and World War II.
It was the biggest war throughout history of the entire world.