 In 1955 a battalion of southern soldiery mutinied, forming the nucleus of the Anyanya rebels in the First Sudanese Civil War, which continued until the south was granted regional autonomy under the Addis Ababa Agreement in 1972.Bol joined the Anyanya and stayed on in the armed forces after the civil war ended.In June 1983 Colonel John Garang de Mabior joined a mutiny of the garrison of Bor, forming the SPLA in October 1983.