Two fighter jets attached to an aviation unit under the PLA Air Force fly in line astern formation during a combat flight operation in 2020. (eng.chinamil.com.cn/Photo by Yu Hongchun)
西北大漠，空军某部展开一场对抗空战，多架战机梯次升空，一场红蓝实兵对抗演练就此展开。图为战机编队飞赴对抗空域。（摄影/余红春）
Source：China Military Online
