returned to Tibet "to assess and organize the resistance" and selected another 300 Tibetans for training. U.S. assistance to the Tibetan resistance ceased after the 1972 Nixon visit to China, after which the United States and China normalized relations. Korea The CIA sponsored a variety of activities during the Korean War. These activities included maritime operations behind North Korean lines. Yong Do Island, connected by a rugged isthmus to Pusan, served as the base for those operations. Well-trained Korean guerrillas carried out these operations. The four principal U.S. advisers responsible for the training and operational planning of those special missions were Dutch Kramer, Tom Curtis, George Atcheson, and Joe Pagnella. All of these Paramilitary Operations Officers operated through a CIA front organization called the Joint Advisory Commission, Korea (JACK), headquartered at Tongnae, a village near Pusan, on the peninsula's southeast coast. These paramilitary teams were responsible for numerous maritime raids and ambushes behind North Korean lines, as well as prisoner of war rescue operations. These were the first maritime unconventional warfare units that trained indigenous forces as surrogates. They also provided a model, along with the other CIA-sponsored ground-based, paramilitary Korean operations, for the Military Assistance Command, Vietnam-Studies and Observations Group (MACV-SOG) activities conducted by the U.S. military and the CIA/SOD (now Special Activities Center) in Vietnam. In addition, CIA paramilitary ground-based teams worked directly for U.S. military commanders, specifically with the 8th Army, on the "White Tiger" initiative. This initiative included inserting South Korean commandos and CIA Paramilitary Operations Officers prior to the two major amphibious assaults on North Korea, including the landing at Inchon. Cuba (1961) The Bay of Pigs Invasion (known as "La Batalla de Girón," or "Playa Girón" in Cuba) was an unsuccessful attempt by a U.S.-trained force of Cuban exiles to invade southern Cuba and overthrow the Cuban government of Fidel Castro. The plan was launched in April 1961, less than three months after John F. Kennedy assumed the presidency of the United States. The Cuban Revolutionary Armed Forces, trained and equipped by Eastern Bloc nations, defeated the exile-combatants in three days. The sea-borne invasion force landed on April 17, and fighting lasted until April 19, 1961. CIA Paramilitary Operations Officers Grayston Lynch and William "Rip" Robertson led the first assault on the beaches, and supervised the amphibious landings. Four American aircrew instructors from Alabama Air National Guard were killed while flying attack sorties. Various