Statistics for Deadliest Wars in History

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Death Toll	War	% Correct
24.5 m	World War I	99%
69.0 m	World War II	99%
1.7 m	Vietnam War	69%
6.7 m	Russian Civil War	57%
4.9 m	Napoleonic Wars	53%
2.7 m	Hundred Years' War	48%
34.6 m	Mongol Conquests	43%
5.8 m	Thirty Years' War	43%
9.6 m	Chinese Civil War	37%
24.4 m	Taiping Rebellion	30%
22.3 m	Second Sino-Japanese War	28%
3.6 m	Second Congo War	26%
1.7 m	Afghanistan War	23%
1.5 m	Punic Wars	22%
1.7 m	Crusades	19%
24.3 m	Spanish Conquest of the Aztec Empire	14%
8.4 m	Spanish Conquest of the Inca Empire	14%
37.9 m	Three Kingdoms War	13%
25.0 m	Qing Conquest of the Ming	11%
21.6 m	An Lushan Rebellion	10%
1.7 m	Nigerian Civil War	7%
7.0 m	Reconquista	6%
4.5 m	Yellow Turban Rebellion	6%
9.7 m	Dungan Revolt	5%
1.4 m	Sudanese Civil War	5%
3.0 m	Bangladesh Liberation War	4%
12.6 m	Conquests of Timur	2%
1.7 m	Mfecane	2%
5.0 m	Moorish Wars	1%
5.6 m	Mughal-Maratha Wars	1%