For what reason did south sudan split from sudan in 2011

South Sudan gained independence from Sudan in July 2011 as the outcome of a 2005 peace deal that ended Africa's longest-running civil war. An overwhelming majority of South Sudanese voted in a January 2011 referendum to secede and become Africa's first new country since Eritrea split from Ethiopia in 1993.

Explanation:

c

explanation:

answer; cnidarians;