Across
- 2. Rebellion, 1899–1901 uprising in China against foreign influence
- 5. War, 1846–1848 war resulting in US acquisition of southwest territories
- 9. War, Cold War-era conflict (1955–1975) involving North and South Vietnam
- 10. War I, Global conflict from 1914 to 1918 involving major world powers
- 11. War, 1870–1871 war leading to German unification
- 12. Years’ War, 1618–1648 religious and political conflict in Central Europe
- 14. War, US conflict (1861–1865) between Northern and Southern states over slavery
- 16. War, 1982 conflict between the UK and Argentina over islands in the South Atlantic
- 18. War, 1853–1856 war between Russia and an alliance of the Ottoman Empire, Britain, and France
- 19. Wars, Series of conflicts in Afghanistan including Soviet invasion and US-led war
Down
- 1. War, Conflict (1950–1953) between North and South Korea, involving UN forces
- 3. Gulf War, 1990–1991 conflict to liberate Kuwait from Iraqi invasion
- 4. of 1812, Conflict between the US and Britain over maritime rights and territory
- 6. War, 1904–1905 conflict over control of Korea and Manchuria
- 7. Revolution, War (1775–1783) where the US gained independence from Britain
- 8. War, 1990–1991 conflict to expel Iraqi forces from Kuwait
- 10. War II, Largest global war from 1939 to 1945 involving Axis and Allied powers
- 13. Years’ War, Long conflict (1337–1453) between England and France
- 15. Wars, Series of wars (1803–1815) led by Napoleon across Europe
- 17. War, 1898 conflict where the US gained territories from Spain