A group of Z-8 transport helicopters attached to an army aviation brigade under the PLA 80th Group Army lift off simultaneously for a flight training exercise on November 18, 2018. (Photos: eng.chinmil.com.cn)

A group of WZ-10 attack helicopters attached to an army aviation brigade under the PLA 80th Group Army lift off simultaneously for a flight training exercise on November 18, 2018.

Soldiers provide security as their teammates use a stretcher to evacuate the wounded during a training exercise on November 18, 2018.

A WZ-10 attack helicopter attached to an army aviation brigade under the PLA 80th Group Army deploys flares during a flight training exercise on November 18, 2018.

A WZ-10 attack helicopter attached to an army aviation brigade under the PLA 80th Group Army deploys flares during a flight training exercise on November 18, 2018.

A WZ-10 attack helicopter attached to an army aviation brigade under the PLA 80th Group Army deploys flares during a flight training exercise on November 18, 2018.