麦克马洪线
On 10 July 1962, 350 Chinese troops surrounded an Indian post in Chushul (north of the McMahon Line) but withdrew after a heated argument via loudspeaker. On 22 July, the Forward Policy was extended to allow Indian troops to push back Chinese troops already established in disputed territory. Whereas Indian troops were previously ordered to fire only in self-defence, all post commanders were now given discretion to open fire upon Chinese forces if threatened. In August, the Chinese military improved its combat readiness along the McMahon Line and began stockpiling ammunition, weapons and fuel.