| Deaths | War | Years | Region | % Correct |
|---|---|---|---|---|
| 17,000,000 | World War I | 1914-1918 | Global | 97%
|
| 80,000,000 | World War II | 1937-1945 | Global | 97%
|
| 1,500,000 | Korean War | 1950-1953 | Korea | 72%
|
| 650,000 | American Civil War | 1861-1865 | United States | 71%
|
| 1,300,000 | Vietnam War | 1955-1975 | Indochina | 69%
|
| 500,000 | Russo-Ukrainian War | 2022-present | Eastern Europe | 66%
|
| 2,300,000 | Hundred Years War | 1337-1453 | France | 63%
|
| 500,000 | Spanish Civil War | 1936-1939 | Iberia | 58%
|
| 1,400,000 | Afghanistan War | 1978-present | Central Asia | 54%
|
| 30,000,000 | Mongol Conquests | 1206-1294 | Eurasia | 54%
|
| 3,500,000 | Napoleonic Wars | 1803-1815 | Europe | 53%
|
| 770,000 | Second Punic War | 218-201 B.C. | Mediterranean | 53%
|
| 8,000,000 | Chinese Civil War | 1927-1949 | China | 49%
|
| 868,000 | Seven Years War | 1756-1763 | Global | 46%
|
| 580,000 | Syrian Civil War | 2011-present | Middle East | 44%
|
| 876,000 | British Civil Wars | 1639-1651 | British Isles | 43%
|
| 4,000,000 | Thirty Years War | 1618-1648 | Central Europe | 43%
|
| 1,000,000 | Crusades | 1095-1291 | Middle East | 42%
|
| 7,000,000 | Russian Civil War | 1917-1922 | Eastern Europe | 42%
|
| 2,500,000 | Second Congo War | 1998-2003 | Africa | 40%
|
| 10,500,000 | Spanish Conquest of Mexico | 1519-1530 | Mexico | 37%
|
| 10,000,000 | Conquest of the Inca | 1533-1572 | South America | 34%
|
| 596,000 | French Conquest of Algeria | 1830-1903 | North Africa | 31%
|
| 500,000 | First Sudanese Civil War | 1955-1972 | North Africa | 27%
|
| 1,000,000 | Second Sudanese Civil War | 1983-2005 | North Africa | 27%
|
| 20,000,000 | Taiping Rebellion | 1850-1864 | China | 26%
|
| 1,000,000 | Gallic Wars | 58-50 B.C. | France | 25%
|
| 36,000,000 | Three Kingdoms War | 184-280 | China | 25%
|
| 500,000 | Rwandan Civil War | 1990-1994 | East Africa | 22%
|
| 500,000 | Ethiopian Civil War | 1975-1991 | East Africa | 21%
|
| 1,000,000 | Mexican Revolution | 1910-1920 | Mexico | 20%
|
| 1,000,000 | Nigerian Civil War | 1967-1970 | West Africa | 19%
|
| 8,000,000 | Conquests of Timur | 1370-1405 | Central Asia | 18%
|
| 600,000 | Eighty Years War | 1568-1648 | Lowlands | 18%
|
| 504,000 | Angolan Civil War | 1975-2002 | Southern Africa | 17%
|
| 1,500,000 | Chinese Warring States | 475-146 B.C. | China | 11%
|
| 1,000,000 | Japanese Invasion of Korea | 1592-1598 | Korea | 11%
|
| 800,000 | Sepoy Rebellion | 1857-1858 | India | 11%
|
| 13,000,000 | An Lushan Rebellion | 755-763 | China | 8%
|
| 3,000,000 | Yellow Turban Rebellion | 91-30 B.C. | China | 7%
|
| 680,000 | Nine Years War | 1688-1697 | Western Europe | 6%
|
| 580,000 | Bar Kokhba Revolt | 132-136 | Levant | 4%
|
| 5,000,000 | Mughal-Maratha Wars | 1658-1707 | South Asia | 4%
|
| 8,000,000 | Dungan Revolt | 1862-1877 | China | 3%
|
| 1,200,000 | Tây Sơn Rebellion | 1771-1802 | Indochina | 2%
|
| 4,900,000 | Miao Rebellion | 1854-1873 | China | 1%
|
| 890,000 | Panthay Rebellion | 1856-1873 | China | 1%
|
| 500,000 | Punti-Hakka Clan Wars | 1855-1868 | China | 1%
|
| 600,000 | Song–Đại Việt War | 1075-1077 | Indochina | 1%
|