evidence: In July 1959, along with the occupation of Tibet, the Chinese PLA occupied several Bhutanese enclaves in western Tibet which were under Bhutanese administration for more than 300 years and had been given to Bhutan by a Ladakhi King Singye Namgya in the 17th century. These included Darchen, Labrang Monastery, Gartok, and several smaller monasteries and villages near Mount Kailas. A Chinese map published in 1961 showed China claiming territories in Bhutan, Nepal and the Kingdom of Sikkim (now a state of India). Incursions by Chinese soldiers and Tibetan herdsmen also provoked tensions in Bhutan. Imposing a cross-border trade embargo and closing the border, Bhutan established extensive military ties with India. During the 1962 Sino-Indian war, Bhutanese authorities permitted Indian troop movements through Bhutanese territory. However, India’s defeat in the war raised concerns about India’s ability to defend Bhutan. Consequently, while building its ties with India, Bhutan officially established a policy of neutrality. According to official statements by the Kind of Bhutan to the National Assembly, there are four disputed areas between Bhutan and China.