In the 1870s and 1880s, renewed conflict among regional rivals — primarily the pro-British penlop of Trongsa and the anti-British, pro-Tibetan penlop of Paro — resulted in the ascendancy of Trongsa Penlop Ugyen Wangchuck. By 1885, he had put down unrest across Bhutan, consolidated power, and cultivated closer ties with British India. Between 1903–4, Ugyen Wangchuck volunteered to accompany a British mission to Lhasa as a mediator in the British expedition to Tibet and subsequent Anglo-Tibetan Convention. In return, he was knighted and thereafter continued to accrue greater power in Bhutan.