A dispute between President Harry S. Truman and GeneralDouglas MacArthur in 1951, during the Korean War. MacArthur, who commanded the troops of the United Nations, wanted to use American air power to attack the People's Republic of China.
Answer and Explanation:
I believe you are referring to what happened to African Americans during the reconstruction of the south, when they were freed from slavery.
In that period, laws were established that prohibited African-Americans from being victims of discrimination and forced labor, although this still happened in society, especially episodes of discrimination. In addition, Africans have gained the right to vote, to be political representatives and to hold public office, as a reflection of their citizenship that was guaranteed through emancipation. Blacks could also participate in commerce, attend schools and own homes.
D. Allowing Texas into the Union would upset the balance of slave and free states in Congress. Though it soon became a state since Manifest Destiny was a very popular idea at the time.