evidence: - Official maps showed parts of Bhutanese territory as part of China. - Moreover, during its annexation of Tibet, China briefly occupied eight Bhutanese enclaves in western Bhutan. Chinese incursions into Bhutanese territory have continued, as has China’s building of roads in disputed areas. [...] - Until recently, the Sino-Bhutanese border dispute involved territory in the western and central sectors only. Beijing claimed 764 square kilometers of Bhutanese territory: 495 sq km in the Jakurlung and Pasamlung Valleys in north-central Bhutan and another 269 sq km in western Bhutan.