US Military Personnel (1939-1945)
1939
Army: 189,839
Navy: 125,202
Marines: 19,432
Total: 334,473
1940
Army: 269,023
Navy: 160,997
Marines: 28,345
Total: 458,365
1941
Army: 1,462,315
Navy: 284,427
Marines: 54,359
Total: 1,801,101
1942
Army: 3,075,608
Navy: 640,570
Marines: 142,613
Coast Guard: 56,716
Total: 3,915,507
1943
Army: 6,994,472
Navy: 1,741,750
Marines: 308,523
Coast Guard: 151,167
Total:9,195,912
1944
Army: 7,994,750
Navy: 2,981,365
Marines: 475,604
Coast Guard: 171,749
Total: 11,623,468
1945
Army: 8,267,958
Navy: 3,380,817
Marines: 474,680
Coast Guard: 85,783
Total: 12,209,238