Ahmed Hassan al-Bakr
Qasim's former deputy Abdul Salam Arif (who was not a Ba'athist) was given the largely ceremonial title of President, while prominent Ba'athist general Ahmed Hassan al-Bakr was named Prime Minister. The most powerful leader of the new government was the secretary general of the Iraqi Ba'ath Party, Ali Salih al-Sa'di, who controlled the National Guard militia and organized a massacre of hundreds—if not thousands—of suspected communists and other dissidents following the coup.