US entry into WW2 and military strategy

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Across
  1. 2. Project to develop the atomic bomb
  2. 4. What the US declared in 1941
  3. 6. President during most of WW2
  4. 8. The US, UK, and Soviet Union
Down
  1. 1. June 6, 1944 invasion
  2. 3. Site of the Japanese attack
  3. 5. Type of bomb developed by the US
  4. 7. Ocean of US-Japanc onflict