 Complete the following phrase:  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 19034, Ugyen Wangchuck volunteered to accompany a British mission to Lhasa as a mediator in the 