Military helicopters in penetration flight training

3月22日，第72集团军某陆航旅组织飞行员围绕编队战术飞行、低空隐蔽突防等课目开展训练，锤炼部队实战能力。张欢朋 摄 Two military helicopters attached to an army aviation brigade under the PLA 72nd Group Army fly at an ultralow altitude in the tactical penetration flight training on March 22, 2022. (eng.chinamil.com.cn/Photo by Zhang Huanpeng)