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Because the whole world was basically in the war
World War 1
Alliances and treaties involved nations and colonies all over the world.
Because the parties directly involved practically all were Empires who together ruled most of what later became known as the Third World. When they got engaged in the war, their colonies automatically also got engaged. And so the war got global in scope.
This was the first global conflict, with estimates ranging from 15 - 50 Million people killed. Many new independent countries were created as a result of this war.
World War I was a truly global conflict. Networks of alliances forced countries to become involved in the fighting, even if they did not directly have a stake in the conflict.
World War 2.
Because the whole world was basically in the war
Strategic Command WWII Global Conflict happened in 2010.
Strategic Command WWII Global Conflict was created on 2010-03-04.
because it involved lots of countries world wide
It never was a global conflict.
It never was a global conflict.
It never was a global conflict.
It never was a global conflict.
The revolution was NOT a global war.
how might global human populations increases lead to war and conflict