Because most of the major countries of the world were involved in the fighting.
world war 1 is the first world war. Nearly all countries were involved in the fighting. The Major countries were Germany France and Brittan
All countries fighting in World War 2 used weapons.
the countries were fighting over toys
World War is a war that involves all/or most of the countries fighting in alliances against each other.
Germany
Most of the fighting from world war 1 happened in Europe in the countries of Belgium and France. The germans did most of the fighting and invasions.
because it was the world war that ended after the first world war. Also referring to world war as a war that has most countries fighting in it.
France(Normandy) their are others too
Even though all the fighting was overseas, Canada and United States and other countries were involved, making it a world war.
World War I (WWI) or First World War (called at the time the Great War) was a major war centered on Europe that began in August 1914. The fighting ended in November 1918.
The Boer War was fought in South Africa and Canada wasn't involved.