evidence: Until the 1970s, India represented Bhutan's concerns in talks with China over the broader Sino-Indian border conflicts.[3] Obtaining membership in the United Nations in 1971, Bhutan began to take a more independent course in its foreign policy.[5] In the U.N., Bhutan, incidentally alongside India, voted in favor of the PRC filling the seat occupied by the ROC and openly supported the "One China" policy.[3][4] In 1974 in a symbolic overture, Bhutan invited the Chinese ambassador to India to attend the coronation of Jigme Singye Wangchuk as the king of Bhutan.[3] In the 1980s, Bhutan relinquished its claim to a 154 square miles (400 km2) area called Kula Khari on its northern border with China.[16] In 1983, the Chinese Foreign Minister Wu Xueqian and Bhutanese Foreign Minister Dawa Tsering held talks on establishing bilateral relations in New York. In 1984, China and Bhutan began annual, direct talks over the border dispute.[3][9]