Answer: Japanese air-raid on Pearl Harbor (Japanese did not declare war to the U.S.A, so it was absolutely unexpected). December 1941.
Explanation:
Do you mean Boaz? and the story from the bible? If so It is because he loves ruth.
True
Following two devastating economic recessions, U.S. foreign policy leaders focused on finding foreign markets to absorb excess goods.
This was called an "iron curtain." Western powers noticed issues of blame and stepping up armaments, therefore having a negative response.