Partial history: On 1 August 1959, USS HANCOCK sailed to reinforce the 7th Fleet as troubles in Laos demanded the watchful presence of powerful American forces in water off Southeast Asia. She returned to San Francisco on 18 January 1960 and put to sea early in February to participate in a new demonstration of communications by reflecting ultra-high-frequency waves off the moon. She again departed in August to steam with the 7th Fleet in waters off Laos until lessening of tension in that area permitted operations ranging from Japan to the Philippines. Hancock returned to San Francisco in March 1961, then entered the Puget Sound Naval Shipyard for an overhaul that gave her new electronics gear and many other improvements. She again set sail for Far Eastern waters on 2 February 1962, patrolling in the South China Sea as crisis and strife mounted both in Laos and in South Vietnam. She again appeared off Quemoy and Matsu in June to stem a threatened Communist invasion there, then trained along the coast of Japan and in waters reaching to Okinawa. She returned to San Francisco on 7 October, made a brief cruise to the coast of Hawaii while qualifying pilots then again sailed on 7 June 1963 for the Far East. Hancock joined in combined defense exercises along the coast of South Korea, then deployed off the coast of South Vietnam after the coup which resulted in the death of President Ngo Dinh Diem.