evidence: File:SINO-INDIAN BORDER DEFENSES CHUSHUL AREA CIA-RDP89B00569R000200120051-4.pdf On 20 October 1975, 4 Indian soldiers were killed at Tulung La in Arunachal Pradesh.[44][45] According to the official statement by the Indian government, a patrol of the Assam Rifles comprising a non-commissioned officer (NCO) and four other soldiers was ambushed by about 40 Chinese soldiers while in an area well within Indian territory, and which had been regularly patrolled for years without incident. Four members of the patrol unit were initially listed as missing before confirmation via diplomatic channels they had been killed by the Chinese troops; their bodies were later returned. The Indian government registered a strong protest with the Chinese.[46] In 2006, the Chinese ambassador to India claimed that all of Arunachal Pradesh is Chinese territory[47] amidst a military buildup.[48] At the time, both countries claimed incursions as much as a kilometre at the northern tip of Sikkim.[35] In 2009, India announced it would deploy additional military forces along the border.[49] In 2014, India proposed China should acknowledge a "One India" policy to resolve the border dispute.[50][51] [...] - Annexation of Tibet by the People's Republic of China - China containment policy - Chinese salami slicing strategy - India-China Border Roads - List of disputed territories of China - List of disputed territories of India - List of territorial disputes - McMahon Line - Sino-Indian relations - Sino-Indian War