Pakistan And China Begin Joint Air Exercise To Improve Combat Training Level 'The joint exercise will improve the actual level of combat training and strengthen practical cooperation between the two air forces,' said China's army general. PTI 10 December 2020 Representational image. PTI 2020-12-10T07:56:02+05:30 Pakistan And China Begin Joint Air Exercise To Improve Combat Training Level outlookindia.com 2020-12-10T07:58:24+05:30 The air forces of Pakistan and China on Wednesday commenced a joint exercise designed to deepen practical cooperation and improve the actual-combat training level of the two sides. The joint air force exercise "Shaheen (Eagle)-IX" started on Wednesday at an operational air base of the Pakistan Air Force (PAF) in Sindh province.