A cluster of fully armed paratroopers successively descend from the transport aircraft Y-20 during the large-scale cluster airborne operation in the China-Russia joint exercise ZAPAD/INTERACTION-2021 at a training base of the PLA Army in Qingtongxia City of West China's Ningxia Hui Autonomous Region from August 9 to 13, 2021. (eng.chinamil.com.cn/Photo by Wang Weidong)
