The "Firepower-2015 Qingtongxia D" trans-Military Area Command (MAC) live-fire military exercises, in which troops from a Regiment under the 21st Group Army of the PLA Lanzhou MAC and an Artillery Brigade under the 16th Group Army of the PLA Shenyang MAC, concluded at a training ground of the PLA Lanzhou MAC on the afternoon of August 16, 2015.