Slavery in the United States was the legal institution of human chattel enslavement, primarily of native Africans and African Americans, that existed in the United States of America from the beginning of the nation in 1776 until passage of the Thirteenth Amendment in 1865. Slavery had been practiced in British America from early colonial days, and was legal in all thirteen colonies at the time those colonies formed the United States. Under the law, an enslaved person was treated as property and could be bought, sold, or given away. Slavery lasted in about half of U.S. states until 1865. As an economic system, slavery was largely replaced by sharecropping and convict leasing.
Once they conquered the nation they would usually force them to work in the military if they didn't have a high rank. Although they had a huge military these soldiers were very well trained and they had weapons beyond their time
