Doklam, called Donglang by China, is an area in Chumbi Valley with a high plateau and a valley, lying between China's Yadong County to the north, Bhutan's Ha District to the east and India's Sikkim state to the west. Since the 1960s, China and Bhutan have disputed sovereignty over the Doklam area. The dispute has not been resolved despite several rounds of b…Doklam, called Donglang by China, is an area in Chumbi Valley with a high plateau and a valley, lying between China's Yadong County to the north, Bhutan's Ha District to the east and India's Sikkim state to the west. Since the 1960s, China and Bhutan have disputed sovereignty over the Doklam area. The dispute has not been resolved despite several rounds of border negotiations between Bhutan and China. The area is of strategic importance to all three countries.