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The Battle of Midway.  Scene on board USS Yorktown (CV-5), shortly after she was hit by three Japanese bombs on 4 June 1942. Dense smoke is from fires in her uptakes, caused by a bomb that punctured them and knocked out her boilers.  Official U.S. Navy Photograph, now in the collections of the U.S. National Archives.
The Battle of Midway. Scene on board USS Yorktown (CV-5), shortly after she was hit by three Japanese bombs on 4 June 1942. Dense smoke is from fires in her uptakes, caused by a bomb that punctured them and knocked out her boilers. Official U.S. Navy Photograph, now in the collections of the U.S. National Archives.

Midway was essentially a victory of intelligence...Since the United States was intercepting and reading Japanese coded messages, American intelligence of the enemy's plans was remarkably complete. Nimitz's information indicated the Japanese objectives, the approximate composition of the enemy forces, the direction of approach, and the approximate date of attack. It was this knowledge that made the American victory possible. Chester Nimitz and Professor E. B. Potter, U.S. Naval Academy, The Great Sea War.
The submariners, certainly, had nothing of their own to celebrate. Only two or three got off a torpedo, and none hit anything. One sent an incomplete contact report that misled Admiral Spruance and prevented the possible sinking of more major Japanese ships. The skippers blamed Bob English's plan; Bob English blamed the skippers. Clay Blair, Jr., Silent Victory The U.S. Submarine War Against Japan.

1. The Midway submarine defense force, in place by June 3, 1942, consisted of how many submarines?
15
12
10

2. Before the Battle of Midway, Admiral Nimitz ordered this senior officer to prepare every submarine in the Pacific for battle.
Raymond Spruance
Bob English
Edward Keith Walker

3. A force of submarines was positioned between Midway and Hawaii to intercept and attack any IJN fleet units that might head for Hawaii. How many submarines did this force consist of?
7
5
8

4. This American submarine is credited with making the first contact between U.S. submarines and the Japanese in the Battle of Midway.
Queenfish
Dolphin
Cuttlefish

5. Admiral Nimitz ordered this U.S. submarine tender to bring the survivors from the abandoned carrier Yorktown back to Pearl Harbor.
Fulton
Pelias
Canopus

6. On June 4, 1942, a Japanese aircraft bombed and machine-gunned this U.S. submarine's periscope. The boat dived to 600 feet, deeper than any fleet boat had ever gone.
Trout
Grouper
Tambor

7. The CO of the submarine in question 6 was criticized by his division commander, William Merrill Downes, for using "...evasive tactics rather than aggressive tactics." Who was the boat's CO?
Hap Lyon
Claren Emmett Duke
William Brockman

8. On June 7, 1942, this American submarine was mistakenly bombed by a formation of 12 U.S. B-17s based on Midway.
Grayling
Gato
Tambor

9. In the early hours of June 6, 1942, with the lights of Midway visible on the horizon, this U.S. submarine ran aground on a submerged coral wall.
Trigger
Gato
Nautilus

10. American forces capable of attacking the badly disorganized IJN naval forces were sent in the wrong direction as a result of a contact report made by the CO of this U.S. submarine, thus resulting in a major mistake in the Battle of Midway.
Flying Fish
Grenadier
Tambor