US Navy view of Tonkin Gulf incident- reconstruction
The Gulf of Tonkin Incident (1964)
The Gulf of Tonkin Resolution Explained: US History Review
The Gulf of Tonkin is a body of water located off the coast of northern Vietnam and southern China. It is a northern arm of the South China Sea. The Gulf is defined in the west by the northern coastline of Vietnam, in the north by China's Guangxi province, and to the east by China's Leizhou Peninsula and Hainan Island.