 Complete the following phrase:  It was when the 5th Dalai Lama Ngawang Lobsang Gyatso succeeded in establishing the Ganden Phodrang government and Gelug supremacy in Tibet, with the help of the Güshi Khan of the Khoshut Khanate, that the post took on the dual role of political and religious leadership however, the 9th12th Dalai Lamas died before adulthood. After Lobsang Gyatsos mortal passing in 1682, which was kept a secret for 15 years, there was a period of anarchy and invasions that eventually led to the establishment of Qing protectorate over Tibet in 1720 that would reach its peak in the 1790s in response to attacks by Nepal, be renewed in 1903 when the 