Air force warplanes in penetration drill(2)

The photo taken on July 28 shows two fighters are flying at low-altitude in a defense penetration drill staged in northwest China. Recently, an aviation troop unit under the air force of the Lanzhou Military Area Command (MAC) of the Chinese People's Liberation Army (PLA) conducted the low-altitude and super-low-altitude defense penetration drill, in a bid to lift the overall combat capability of the troop unit to a new level. (kj.81.cn/Chen Qingshun)