In 2005, the founding father of the SPLM/A Dr. John Garang de Mabior signed the Comprehensive Peace Agreement with the Sudan government under Omar Hassan al-Bashir that ended the longest Sudanese civil war that dated back to the mid-1950s when Southern insurgents took up arms against the Islamist government in the Sudan who were oppressing the Southerners, the war which resulted in the death of more than 2 million, only between 1983 and 2005.