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.

I am joyous to assist you anytime.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place