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Last updated: 8/9/2023

18000000 16000000 14000000 12000000 10000000 8000000 6000000 4000000 2000000 777 Spanish American War World War I Approximately 2 times more Approximately 3 times more Approximately how many more American Service Personnel were used in World War II than in World War I Approximately 4 times more World War II Approximately 5 times more Korean War American Service Personnel Deployed