to the Nicaraguan Armed Forces. The transfer ceremony occurred at the naval forces’ 2nd battalion in Puerto Sandino. Paraguay In 2019 Taiwan donated two UH-1H helicopters and 30 Humvees to the Armed Forces of Paraguay. Paraguayan President Mario Abdo Benítez shared pictures of the military aid on the presidential Twitter feed. Singapore Starting in 1975, Singapore has sent units from its military to train in the Republic of China under the Starlight training program (). Singaporean forces training in Taiwan numbered roughly 3,000 as of 2005. Singapore has also supplied the ROCAF with military equipment. In 2007, a F-5F fighter operated by the Republic of China Air Force (ROCAF) crashed into base housing that was occupied by Singaporean personnel, killing the pilots. Two Singaporeans on the ground were also killed, with nine injured. The Starlight program at that time numbered around 7,000 personnel. In 2019, a Singaporean paratrooper was seriously injured during nighttime parachute training. He underwent intensive surgery and recovery in Taiwan. In 2020 he was flown back to Singapore aboard a Singapore Air Force A330 Multi-Role Tanker Transport. United States Collaboration between the ROC and US militaries began during World War II when both nations were members of the Allied forces, and continued through the Chinese Civil War when ROC forces were supplied primarily by the US until the final evacuation of ROC forces to Taiwan in 1949. Initially the U.S. expected the ROC government to fall and withdrew support until the outbreak of the Korean War when the U.S. 7th Fleet was ordered to the Taiwan Straits both to protect Taiwan from a PRC attack, and to stop ROC actions against the PRC. A formal US-ROC security pact was signed in 1954 establishing a formal alliance that lasted until US recognition of the PRC in 1979. During this period US military advisers were deployed to the ROC and joint exercises were common. The United States Taiwan Defense Command was established in the Philippines for reinforcement of Taiwan airspace. The US and ROC also collaborated on human and electronic intelligence operations directed against the PRC. ROC units participated in the Korean War and the Vietnam War in non-combat capacities, primarily at the insistence of the United States which was concerned that the high-profile roles for ROC forces in these conflicts would lead to full scale PRC intervention. The United States deployed nuclear weapons on Taiwan as part of