Soldiers assigned to an antiaircraft artillery regiment under the PLA Xinjiang Military Command fire anti-aircraft guns during a live-fire training exercise in the Tian mountain area of northwest China's Xinjiang Uygur Autonomous Region in mid-July. The exercise focuses on subjects including quick maneuver, position occupation, air intelligence early warning, command and control, and fire strike. (eng.chinamil.com.cn/Photo by Zhang Zhongchou and Xu Tianyang)