Across
- 4. codename for the type of nuclear bomb that was detonated over the Japanese city of Hiroshima
- 5. was a historical nation-state and great power that existed from the Meiji Restoration in 1868 until the enactment of the post-World War II
- 7. the Japanese surprise air attack on the American Pacific Fleet
- 8. codename for the type of nuclear bomb that was detonated over the Japanese city of Nagasaki
- 9. the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
Down
- 1. Great Britain, France, and Soviet Union
- 2. alliance were Germany, Italy, and Japan.
- 3. The person who invaded Poland from the west.
- 6. the impact of the Treaty of Versailles following WWI, the worldwide economic depression