yes it was
Largest military AND civilian casualty and death rate.
that is very easy it is the Civil War :) and second would be World War II
It was the largest and most devastating war in human history.
I wouldn't call any war "great" but WWII is the largest war in history in terms of of area of the world affected and people involved, and the worst in terms of the number of casualties.
The largest naval battle in history.
World War II holds the distinction of being the only war that used a nuclear weapon. It was a war that involved virtually every part of the world during the years 1939 to 1945. It was also the largest and bloodiest war in history.
"Operation Overlord" .
Most probably, Mongolia had no knowledge that the Civil War was happening. Their empire, formerly the largest in world history, had crumbled, and they had withdrawn from world affairs.
The history of the Romanian people is a history of wars; XXth: Balkanic War, World War I, World War II.
World War II is the deadliest war in history.
world war 1
world war 1