Will give brainliest! what event provoked the united states to join the military combat in world war ll?
a. winston churchill asked the president for support
b. adolf hilter invaded poland
c. the japanese attacked pearl harbor
d. congress passed the selective service act

C. The Japanese attacked Pearl Harbor.

Explanation:

As Japan had an alliance with Germany and Italy, both countries proclaimed war on the United States on 11 December 1941, four days after the Pearl Harbor attack, which was one of the reasons they entered the war.

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the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.