1949年,中国共产党领导的人民解放战争取得决定性胜利后,解放西藏被提到了重要的议事日程。这时,帝国主义正千方百计唆使西藏的亲帝分裂主义分子加紧进行“西藏独立”的活动。1949年7月8日原西藏地方政府公然封闭国民政府驻拉萨的办事机构,驱逐其工作人员及一批汉人出西藏,妄图趁国民政府在大陆即将垮台的时候,完全断绝与中央政府的联系。9月,西藏地方政府决定扩充“政教护卫 After the 1949 Chinese liberation war led by the Chinese Communist Party won a decisive victory, the liberation of Tibet was referred to an important agenda. At this time, imperialism is trying every means to incite the pro-Dili separatists in Tibet to intensify their activities of ”Tibet independence.“ July 8, 1949 The former Tibetan local government publicly closed the offices of the National Government in Lhasa, expelled its staff and a group of Han Chinese from Tibet in an attempt to completely cut off their ties with the Central Government while the national government was about to fall. In September, the local government of Tibet decided to expand the ”political guard."