Ulysses S. Grant was the president during the end.
Under the Truman Doctrine, the United States became committed to helping countries that were a) fighting a Communist takeover.
King was a social activist and Baptist minister who played a key role in the American civil rights movement from the mid-1950s until his assassination in 1968. King sought equality and human rights for African Americans, the economically disadvantaged and all victims of injustice through peaceful protest
Answer:
They would have to implement full racial integration in order to be readmitted to the Union.
Explanation:
The South were in support of slavery and their unwillingness to abolish it made them to leave the Union. The North were against slavery and was in support of its abolition.
After a while they changed their and wanted to come back but the Radical Republican gave them some conditions and requirement and the most objectionable was that they would have to implement full racial integration in order to be readmitted to the Union.