On 23 February 1966, a group of army officers carried out a successful, intra-party coup, imprisoned President Hafiz, dissolved the cabinet and the NCR, abrogated the provisional constitution, and designated a regionalist, civilian Ba'ath government on 1 March. The coup leaders described it as a "rectification" of Ba'ath Party principles. In June 1967 Israel captured and occupied the Golan Heights. The Six Day War had significantly weakened the radical socialist government established by the 1966 coup.