Pakistan's armed forces present air show, anti-terrorism drill

Pakistani helicopters perform during an air show in Pakistan's southern port city of Karachi, on Nov. 29, 2018. Pakistan's armed forces presented an air show and anti-terrorism demonstration in Karachi as part of the 10th edition of the International Defense Exhibition and Seminar (IDEAS-2018). (Xinhua/Stringer) 【新華社北京３月２１日】