Li Jianguo (front right), deputy chief of a central government delegation sent to attend the celebrations marking the 60th anniversary of Tibet's peaceful liberation, is greeted by Benpa Drasi, secretary of the Communist Party of China committee of Nagqu Prefecture on July 21，2011. A gala is held in the open air in the afternoon to celebrate the anniversary. Nagqu extends 430,000 sq km in northern part of Tibet, with a population of 450,000. [Photo by Zhao Huanxin / aolaikelin.cn] 

Li Jianguo (right), deputy chief of a central government delegation sent to attend the celebrations marking the 60th anniversary of Tibet's peaceful liberation, and Qiangba Puncog (left), head of the standing committee of the Tibet autonomous region's people's congress, greet people participating in a gala in Nagqu Prefecture on the afternoon of July 21, to celebrate the anniversary. Nagqu extends 430,000 sq km in the northern part of Tibet, with a population of 450,000. [Photo by Zhao Huanxin / aolaikelin.cn]