US Gen. George Marshall testifying before members of Joint Pearl Harbor Committee in Washington, DC

The transcript discusses the critical role of deciphering enemy codes, particularly German and Japanese, in gaining intelligence during World War II. It highlights how this intelligence was pivotal in strategic military operations, such as the Battle of the Coral Sea and the Midway advance. The document emphasizes the importance of monitoring Japanese troop movements and convoy routes, which allowed for effective military actions. It also underscores the necessity of maintaining secrecy to protect these intelligence sources, especially in light of political debates surrounding Pearl Harbor.

What was the primary source of information regarding Hitler's intentions in Europe?

• Italian diplomatic cables

• British intelligence reports

• Intercepted American communications

• Baron Oshima's messages from Berlin

How did deciphered messages influence the Battle of the Coral Sea?

• They allowed for the deployment of additional troops.

• They provided the exact location of enemy forces.

• They led to the development of new naval strategies.

• They enabled ships to be in the right place at the right time.

What was a key factor in the successful defense against the naval advance on Midway?

• Allied reinforcements from Europe

• Unexpected weather conditions

• Deciphered intelligence on enemy movements

• Superior naval technology

What role did intelligence play in the operations in the Pacific?

• It was used to negotiate peace treaties.

• It provided financial support for military operations.

• It guided the deployment of forces based on Japanese movements.

• It helped in predicting weather patterns.

Why was it crucial to keep the sources of intelligence secret during political debates?

• To prevent the enemy from suspecting the sources

• To avoid diplomatic conflicts

• To maintain public morale

• To ensure financial support from allies