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World war costs

1 million Indian troops and 70,000 dead soldiers in WW1. America entered in 1917 and lost 65,000 soldiers

WW2

2.5 million Indian troops, 87000 soldiers, 3 million civilians dead of famine in ww2.
Britain fought Japanese to the last Indian in the Indo China theater, used Indian troops against Rommels Afrika Korps , Mesopotamia.
USSR lost nearly 30 percent of its population in the war the most brutal war of attrition.