The 8 March 1963 coup resulted in the installation of the National Council for the Revolutionary Command (NCRC), a group of military and civilian officials who assumed control of all executive and legislative authority. The takeover was engineered by members of the Ba'ath Party led by Michel Aflaq and Salah al-Din al-Bitar. He was overthrown in early 1966 by Marxist-Leninist military dissidents of the party led by General Salah Jadid. Since the Arab Spring of 2011, Bashar al-Assad's government has been involved in the ongoing Syrian civil war.