Rubuta ci gaba don wannan sakin layi - A cikin 1640s, shekarun ƙarshe na daular Ming, masanin ilimin ƙasa Xu Xiake ya bincika ƙasar Salween River kuma ya ƙayyade cewa Salween na sama, Mekong da Red koguna (wanda a baya aka yi imanin cewa ɓangare ne na tsarin kogin ɗaya) sun kasance a zahiri daban. Bayan hauhawar daular Qing, kasar Sin ta shiga wani sabon zamani na fadada yamma. A shekara ta 1717 daular Dzungar Khanate ta ci Tibet, kuma Sin ta yi ƙoƙari ta kore su daga yankin. A cikin 1718 Qing ya aika da sojoji amma ba su yi nasara ba wajen isa Tibet, sun kai har zuwa Kogin Salween inda sojojin Dzungar suka ci su a Yaƙin Kogin Salween. A sakamakon haka, Qing ya aika da karfi zuwa Tibet a 1720
, fitar da Dzungars da kuma kafa mulkin Qing na Tibet.