Where did us military officials expect the japanese to attack during world war ii?

Answer;
Asia

The US military officials expected the Japanese to attack at Asia during World War II. 

Explanation;
The United states formally entered the second World War following the Japanese attack on Pearl Harbor which they never anticipated that it will be attacked. The action by the US to froze Japan's assets and exports in 1941 angered the Japanese and resulted in the Bombing of Pearl Harbor, a factor that made US to enter the second World War. 
 

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