An H-6 bomber attached to an aviation regiment of the air force under the PLA Southern Theater Command takes off from the flightline for a round-the-clock penetration flight training exercise on March 30, 2020. (eng.chinamil.com.cn/Photo by Wang Wenbin)

An H-6 bomber attached to an aviation regiment of the air force under the PLA Southern Theater Command takes off from the flightline for a round-the-clock penetration flight training exercise on March 30, 2020. (eng.chinamil.com.cn/Photo by Wang Wenbin)

An H-6 bomber attached to an aviation regiment of the air force under the PLA Southern Theater Command takes off from the flightline for a round-the-clock penetration flight training exercise on March 30, 2020. (eng.chinamil.com.cn/Photo by Wang Wenbin)

An H-6 bomber attached to an aviation regiment of the air force under the PLA Southern Theater Command takes off from the flightline for a round-the-clock penetration flight training exercise on March 30, 2020. (eng.chinamil.com.cn/Photo by Wang Wenbin)