Answer: Pick whichever you like ;
- The Civil War ;The Civil War was America's bloodiest conflict
- Conquests of Cyrus the Great ; Had a death range of 100,000+
- Punic wars ; Had a death range of 1,250,000–1,850,000
- First Punic war ; Had a death range of 400,000+
- Hunnic Reclaims ; Had a death range of 165,000+
- Wars of the Sixteen Kingdoms ; Had a death range of 150,000+
- Yellow Turban Rebellion ; Had a death range of 3,000,000–7,000,000
- Three Kingdoms war ; Had a death range of 36,000,000–40,000,000
- Cimbrian war ; Had a death range of 410,000–650,000
- Third Punic war ; 770,000+
Explanation:
Note ; they are not arranged accordingly.