Analysis of information sources in references of the Wikipedia article "Jammu and Kashmir (union territory)" in English language version.
The situation between the two nations was complicated by the 1957–1959 uprising by Tibetans against Chinese rule. Refugees poured across the Indian border, and the Indian public was outraged. Any compromise with China on the border issue became impossible. Similarly, China was offended that India had given political asylum to the Dalai Lama when he fled across the border in March 1959. In late 1959, there were shots fired between border patrols operating along both the ill-defined McMahon Line and in the Aksai Chin.
Territorial Dispute: The situation along the Sino-Indian frontier continued to worsen. In late July (1959), an Indian reconnaissance patrol was blocked, "apprehended," and eventually expelled after three weeks in custody at the hands of a larger Chinese force near Khurnak Fort in Aksai Chin. ... Circumstances worsened further in October 1959, when a major class at Kongka Pass in eastern Ladakh led to nine dead and ten captured Indian border personnel, making it by far the most serious Sino-Indian class since India's independence.
The union territory is part of the larger region of Kashmir, which has been the subject of dispute between India, Pakistan, and China since the partition of the subcontinent in 1947. ... The territory that India administered on its side of the line, which contained both Jammu (the seat of the Dogra dynasty) and the Vale of Kashmir, took on the name Jammu and Kashmir. However, both India and Pakistan have continued to claim the entire Kashmir region
Ladakh, large area of the northern and eastern Kashmir region, northwestern Indian subcontinent. Administratively, Ladakh is divided between Pakistan (northwest), as part of Gilgit-Baltistan, and India (southeast), as part of Ladakh union territory (until October 31, 2019, part of Jammu and Kashmir state); in addition, China administers portions of northeastern Ladakh.
The situation between the two nations was complicated by the 1957–1959 uprising by Tibetans against Chinese rule. Refugees poured across the Indian border, and the Indian public was outraged. Any compromise with China on the border issue became impossible. Similarly, China was offended that India had given political asylum to the Dalai Lama when he fled across the border in March 1959. In late 1959, there were shots fired between border patrols operating along both the ill-defined McMahon Line and in the Aksai Chin.
Territorial Dispute: The situation along the Sino-Indian frontier continued to worsen. In late July (1959), an Indian reconnaissance patrol was blocked, "apprehended," and eventually expelled after three weeks in custody at the hands of a larger Chinese force near Khurnak Fort in Aksai Chin. ... Circumstances worsened further in October 1959, when a major class at Kongka Pass in eastern Ladakh led to nine dead and ten captured Indian border personnel, making it by far the most serious Sino-Indian class since India's independence.