the united states formally entered world war ii following the japanese attack on\no nanjing\no indochina\no…

the united states formally entered world war ii following the japanese attack on\no nanjing\no indochina\no pearl harbor\no the philippines

the united states formally entered world war ii following the japanese attack on\no nanjing\no indochina\no pearl harbor\no the philippines

Answer

Brief Explanations:

On December 7, 1941, Japan launched a surprise - attack on the U.S. naval base at Pearl Harbor in Hawaii. This act led the United States to formally enter World War II the next day.

Answer:

C. Pearl Harbor