Nuclear Blackmail

In 1953, Eisenhower threatened the use of Nuclear Weapons to end the Korean War if the Chinese refused to negotiate. Consequently the Chinese and North Korea signed the Armistice. [1]
The United States issued several nuclear threats against the People's Republic of China in the 1950s to force the evacuation of outlying islands and the cessation of attacks against Quemoy and Matsu, part of Republic of China.[2]