1. Pearl Harbor Raid
7 December 1941

3. The 7 December 1941 Japanese attack on Pearl Harbor was one of the most defining moments in American history

4. Why?

5. Carefully-planned & well-executed attack removed the U. S
Carefully-planned & well-executed attack removed the U.S. Navy’s battleship force as a battleship force as a possible threat to the Japanese Empire’s southward expansion

6. Attack at Pearl Harbor America was unprepared & considerably weakened
Attack caused the U.S. to formally enter WWII
Memory of “sneak attack” fueled a U.S. determination to fight

9. Attack at Pearl Harbor
U.S. Naval fleet in the Pacific was anchored at Pearl Harbor, Hawaii

10. Attack at Pearl Harbor
On Sunday morning, December 7, 1941, while most American sailors were still asleep in their bunks, Japanese planes from aircraft carriers flew over Pearl Harbor

11. Attack at Pearl Harbor
Planes and submarines of the Imperial Japanese Navy began a surprise attack on the U.S. under the Command of Vice Admiral Chuichi

12. Attack at Pearl Harbor
Japanese planes from aircraft carriers flew over Pearl Harbor bombing every ship in sight

14. Attack at Pearl Harbor Lasted less than 2 hours
2,403 Americans were killed (including over 1,100 when the battleship Arizona sank)
68 civilians were killed
Almost 1,200 were wounded
Approximately 150 airplanes were destroyed

15. Attack at Pearl Harbor 20 warships were sunk
Approximately 150 airplanes were destroyed

19. Partial Surprise
American people were stunned by the attack on Pearl Harbor
High government officials, however, knew that an attack somewhere in the Pacific was imminent because they had broken the Japanese codes

20. Partial Surprise
Government officials did not know the exact target & date for the attack
Many believed the attack would be in the Philippines, the Dutch East Indies, or Malaya

21. Partial Surprise
Attack might have been no surprise as vital intelligence information was not passed to the Navy commander Admiral Kimmel

22. Disputes With Japan
By 1940 U.S. relations with Japan were becoming increasingly strained
Reason: Japan’s invasion of China & territorial ambitions to extend its conquests to Southeast Asia

23. Disputes With Japan
Beginning in 1940, Japan was allied with Germany & Italy as one of the Axis powers

24. Disputes With Japan
Hitler’s success in Europe provided an opportunity for Japanese expansion into the Southeast Asia (British Burma, French Indochina)
Territories held as colonies by European nations

25. Disputes With Japan
European nations were too preoccupied with stopping Hitler’s expansion in Europe

26. U.S. Economic Action
When Japan joined the Axis in September 1940, FDR responded by prohibiting the export of steel and scrap iron to all countries except Britain and nations of the Western Hemisphere

27. U.S. Economic Action
His action was aimed at Japan which protested that it was an “unfriendly act”

28. U.S. Economic Action
In July 1941, Japanese troops occupied French Indochina
FDR cut off Japanese access to vital materials, including U.S. oil (trade embargo)

29. Negotiations
Both sides (U.S. & Japan) realized that Japan needed oil to fuel its navy & air force
If the U.S. embargo on oil did not end, Japan would be forced to extend its conquests by taking oil resources in the Dutch East Indies

30. Negotiations
Secretary of State Hull insisted that Japan pull its troops out of China, which Japan refused to do
Violation of Open Door policy

31. Negotiations
Japanese ambassador to the U.S. tried to negotiate a change in U.S. policy regarding oil
Agreement seemed unlikely

32. Negotiations
In October, a new Japanese government headed by General Hideki Tojo made a final attempt at negotiating an agreement
Neither side changed its position

33. Negotiations
FDR’s military advisers hoped that an armed confrontation with Japan could be delayed until U.S. armed forces in the Pacific were sufficiently strong

34. Negotiations
Japan believed that quick action was necessary due to its limited oil supplies

35. Why did Japan Attacked America?
Japan was trying to become the dominant power in East Asia and the Pacific
They had invaded China in 1933 & were preparing to conquer Indochina, Malaysia & the Pacific Islands

36. Why did Japan Attacked America?
They wanted to control these territories so they could use the badly needed oil raw materials in them for their own industries

37. Why did Japan Attacked America
U.S. had been growing steadily more opposed to the Japanese expansion
Japan knew if they attacked those other countries the U.S. might go to war to stop them

38. Why did Japan Attacked America?
Japan decided to attack us first
They hoped they could cripple us so we could not oppose them while they grabbed as much territory as they could
Once they had the territory, they hoped America would make peace with them & let them keep it