Answer:
The U.S joined the military combat in WWII after the attack on pearl harbor.
On 7 December 1941, while German armies were freezing before Moscow, Japan suddenly pushed the United States into the struggle by attacking the American naval base at Pearl Harbor, Hawaii. Four days later Hitler declared war on the United States.
And what did hitler do to cause the war?
Hitler smashed the nation's democratic institutions and transformed Germany into a war state intent on conquering Europe for the benefit of the so-called Aryan race. His invasion of Poland on September 1, 1939, triggered the European phase of World War II
Explanation:
i dont understand the question, i might be able to help if u explain it more.
A. with captured Africans who were brought as slaves
During that time period, certain African group leaders would conquer other African tribes and sell the members as slaves to Europeans, who then sold them to colonists in the Americas. These kidnapped Africans were then used to fill the need for labor on plantations, including sugar, in the Americas.
The single main event that <span>caused the United states to become involved in world War 1 was the German sinking of the ship the "Lusitania," which contained many American citizens. </span>