The government of Nkrumah was subsequently overthrown by a coup by the Ghana Armed Forces codenamed "Operation Cold Chop". This occurred while Nkrumah was abroad with Zhou Enlai in the People's Republic of China, on a fruitless mission to Hanoi in Vietnam to help end the Vietnam War. The coup took place on 24 February 1966, led by Col. Emmanuel Kwasi Kotoka. The National Liberation Council (NLC) was formed, chaired by Lt. General Joseph A. Ankrah.