sentences:  In 1965, the then Lieutenant-Colonel Kotoka was transferred to Kumasi where he met and became friends with then Major Akwasi Amankwa Afrifa, an officer in the Second Brigade of the Ghana army.The two are generally credited with being among the key conspirators behind the first bloody coup d'état in Ghana on 24 February 1966 which brought an end to the first republic.They codenamed it "Operation Cold Chop".