The Attack on Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service upon the United States against the naval base at Pearl Harbor in Honolulu, Hawaii on Sunday morning, December 7, 1941. The attack led to the United States' formal entry into World War II the next day.
The Germans invaded Belgium which allowed them to attack France from the North. If successful, the Germans would move their armies East to fight Russia, avoiding a two front war.
D. Fords revolutionary use of the assembly line to make less-expensive cars.
Explanation:
The immediate impact of the assembly line was revolutionary. The use of interchangeable parts allowed for continuous workflow and more time on task by laborers. Worker specialization resulted in less waste and a higher quality of the end product. Sheer production of the Model T dramatically increased.
