Topix Underground

"According to the Department of Veterans Affairs and other sources, approximately 651,031 U.S. military personnel died in battle from 1775 to 1991, with additional deaths in post-1991 conflicts. Including more recent conflicts like the War on Terror (Iraq, Afghanistan, and related operations), the total number of combat deaths since the founding of the United States is likely between 660,000 and 700,000. This range accounts for variations in reporting and excludes non-combat deaths (e.g., disease, accidents, suicides), which are significant in some wars."

American Revolutionary War (1775–1783) 
Combat deaths: ~4,435 to 8,000 

War of 1812 (1812–1815) 
Combat deaths: ~2,260 

Total deaths (including disease): ~15,000. Most deaths were non-combat, primarily from disease.

Mexican-American War (1846–1848) 
Combat deaths: ~1,733 

Total deaths: ~13,283, with most attributed to disease.

American Civil War (1861–1865) 
Combat deaths: ~214,938 (Union and Confederate combined) 

Total deaths: ~620,000–750,000, with ~405,000 non-combat deaths (mostly disease). The American Battlefield Trust estimates 620,000 total deaths, while some sources suggest up to 850,000. Combat deaths are roughly one-third of the total.

Spanish-American War (1898) 
Combat deaths: ~385 

Total deaths: ~2,500, with most due to disease.

Philippine-American War (1899–1902) 
Combat deaths: ~1,020 

Total deaths: ~4,200.

World War I (1917–1918) 
Combat deaths: ~53,402 

Total deaths: ~116,516, with ~63,114 from disease (e.g., Spanish Flu).

World War II (1941–1945) 
Combat deaths: ~291,557 

Total deaths: ~405,399. The National WWII Museum reports 8.6 per 1,000 service members were killed in action.

Korean War (1950–1953) 
Combat deaths: ~33,746 

Total deaths: ~36,574 in-theater, with some sources citing 54,246 worldwide (including non-combat).

Vietnam War (1964–1973) 
Combat deaths: ~47,434 

Total deaths: ~58,220, with ~10,786 non-hostile.

Persian Gulf War (1990–1991) 
Combat deaths: ~148 

Total deaths: ~383.

War on Terror (2001–present) 
Iraq (2003–2020): ~3,793 combat deaths (4,605 total, including non-hostile). 

Afghanistan (2001–2021): ~1,922 combat deaths (2,459 total). 

Total combat deaths (Iraq, Afghanistan, other operations): ~5,715 (7,064 total deaths).

Other Conflicts 
Smaller conflicts (e.g., Indian Wars, interventions in Panama, Somalia, etc.) contribute additional deaths. For example, the Indian Wars (1775–1890) resulted in ~1,000 combat deaths. Total combat deaths in minor conflicts are estimated at ~5,000–10,000, though records