Answer:
Explanation:
The U.S. prepared for war by first building- up the military in readiness for deployment, by initiating a draft. President Woodrow Wilson sought Congress support in the declaration of war against Germany. ... Businesses and citizens were strongly urged to support the war through government and media communications.
Slavery was introduced wind a Dutch ship traded African slaves for food in 1619. When White settlers were unable to find cheap labour they turn to the slaves imported from Africa.
Because hitler saw them as "unpure" races.