Original sentence: Chiang Kai Shek had to be supported by the United States because the ROC had become an important ally in the vicinity of South East Asia.However, on December 2, 1954, the United States and the ROC agreed to a mutual defense treaty which did not apply to islands along the Chinese mainland.Joint Chiefs of Staff recommended the use of nuclear weapons against mainland China.Since the PRC was not recognized by United States Department of State at the time, Chiang Kai Shek was the only leader they could negotiate with.The PLA seized Yijiangshan Islands on January 18, 1955.The ROC began building defensive structures and the PRC began shelling ROC installations on Quemoy.forces to defend the ROC and its possessions in the Taiwan Strait against armed attack
Edited sentence: Chiang Kai Shek had to be supported by the United States because Taiwan had become an important ally in the vicinity of South East Asia.However, on December 2, 1954, the United States and the Republic of China agreed to a mutual defense treaty which did not apply to islands along the Chinese mainland.Joint Chiefs of Staff recommended the use of nuclear weapons against China.Since the PRC was unrecognized by United States Department of State at the time, Chiang Kai Shek was the only leader they could negotiate with.The PLA seized Yijiangshan Islands on January 18 1955.The ROC began building defensive structures and the PRC began shelling Taiwanese installations on Quemoy.forces to defend Formosa and its possessions in the Taiwan Strait against armed attack