麦克马洪线
In August 1959, the Chinese army took an Indian patrol prisoner at Longju, which falls north of the McMahon Line coordinates drawn on the Simla Convention, signed in 1914, map (27°44'30" N), but claimed by India to lie directly on the McMahon Line. There was another bloody clash in October at Kongka Pass in Aksai Chin in which 9 Indian frontier policemen were killed. Recognizing that it was not ready for war, the Indian Army assumed responsibility for the border and pulled back patrols from disputed areas.