1884年,一支约300人的英军闯入西藏,在干坝地区被藏民阻止。西藏地方政府和当地宗教势力认为英国有侵略野心,于是在西藏与锡兰的边境热纳宗隆吐山(今锡金龙头山)要隘建卡设防,禁止百姓前去通商,严禁洋人入藏,并断绝交往。隆吐山关卡设立后, 1888年3月20日,英国以藏民占领锡金隆吐山并阻碍通商为由,发动1600余英军猛攻驻守隆吐山的200多名藏军,在实力悬殊下,藏军惨败,英军最终占领隆吐卡,并向拉萨方向进逼。西藏当地召集军民抵抗,驻藏清军没有参与抵抗,清廷还要求西藏地方当局保持克制,并向英国和谈。一向热衷屈辱求和的清政府爽快地于1889年和英国早早确定锡金与西藏的边界,中国失去锡金的宗主国地位,同意英国占领锡金。又经过艰苦的谈判,清廷最后在1893年同意印度茶入藏,于1894年在边境的亚东开商埠#茶文化 #茶文案 #天选雅集![](http://tiebapic.baidu.com/forum/w%3D580/sign=c4658306764e251fe2f7e4f09786c9c2/502b9dfc1e178a823c505e9cb003738da977e8a8.jpg?tbpicau=2024-07-01-05_a524bc38d5fbc09e34ad83fbb9987453)
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