Multi-type helicopters attached to an army aviation brigade under the PLA 79th Group Army fly in formation at an ultra-low altitude during a training exercise in late September, 2018. (Photos: (eng.chinamil.com.cn)

Multi-type helicopters attached to an army aviation brigade under the PLA 79th Group Army fly in formation at an ultra-low altitude during a training exercise in late September, 2018.

Soldiers sitting in an advancing military all-terrain vehicle (ATV) sight in on targets during a training exercise in late September, 2018. They are assigned to an army aviation brigade under the PLA 79th Group Army.

A military all-terrain vehicle (ATV) attached to an army aviation brigade under the PLA 79th Group Army exits from a Mi-171 transport helicopter during a training exercise in late September, 2018.

Special operations soldiers assigned to an army aviation brigade under the PLA 79th Group Army fast-rope from a Mi-171 transport helicopter during a training exercise in late September, 2018.

An attack helicopter attached to an army aviation brigade under the PLA 79th Group Army shoots flares for concealment during a training exercise in late September, 2018.

Special operations soldiers assigned to an army aviation brigade under the PLA 79th Group Army fast-rope from a Mi-171 transport helicopter during a training exercise in late September, 2018.