South Sudan gained independence from Sudan in 2011 and descended into civil war in 2013 following a political conflict between President Salva Kiir and opposition leader Riek Machar.
In 2018, the two sides signed the Revitalized Agreement on the Resolution of the Conflict in the Republic of South Sudan (R-ARCSS), forming a unity government in which Kiir remained President while Machar returned as First Vice President, alongside representatives from the major parties to the conflict.
The agreement relied on former rival armed groups sharing executive power while gradually unifying their militaries and implementing constitutional reforms before holding national elections; however, elections have been repeatedly postponed, the armed forces remain only partially unified, and several key provisions of the agreement remain unimplemented.
Since 2025, Machar has been placed under house arrest and charged with treason, several opposition officials have been arrested or removed from office, and much of the opposition has declared the power-sharing arrangement no longer functional.