Due to the terms of the treaties they signed after the Civil War, what happened to the slaves owned by American Indian tribes? A. They were granted land in western Arkansas for settlement. B. They became citizens of the American Indian tribes. C. They could not be granted emancipation due to tribal law. D. They were paid a stipend by the American Indian nations.

As general terms, Indian Territory, the Indian Territories, or Indian country describe an evolving land area set aside by the United States Government for the relocation of Native Americans who held aboriginal title to their land. In general, the tribes ceded land they occupied in exchange for land grants in 1803. The concept of an Indian Territory was an outcome of the 18th - and 19th-century policy of Indian removal. After the Civil War (1861-1865), the policy of the government was one of assimilation.

The term Indian Reserve describes lands the British government set aside for indigenous tribes between the Appalachian Mountains and the Mississippi River in the time before the American Revolutionary War (1775-1783).

Indian Territory later came to refer to an unorganized territory whose general borders were initially set by the Indian Intercourse Act of 1834, and was the successor to the remainder of the Missouri Territory after Missouri received statehood. The borders of Indian Territory were reduced in size as various Organic Acts were passed by Congress to create incorporated territories of the United States. The 1907 Oklahoma Enabling Act created the single state of Oklahoma by combining Oklahoma Territory and Indian Territory, ending the existence of an Indian Territory.

The correct answer is B) they became citizens of the American Indian tribes.

Due to the terms of the treaties, they signed after the Civil War, what happened to the slaves owned by American Indian tribes was that they became citizens of the American Indian tribes.

After the end of the Civil War, many voices raised in the North demanding punishment not only to the Confederated states, bout also to the Native American Indian tribes that supported the Confederate Army. That is why members of the Five Tribes started negotiations in 1865 with the Federal Government in Fort Smith Council. Regarding the slaves owned by American Indian tribes during the war, the agreement was that they became citizens of the American Indian tribes.