A fighter jet attached to an aviation brigade of the air force under the PLA Northern Theater Command takes off for a flight patrol mission on October 4, 2019. (eng.chinamil.com.cn/Photo by Dai Ke)
A fighter jet attached to an aviation brigade of the air force under the PLA Northern Theater Command takes off for a flight patrol mission on October 4, 2019. (eng.chinamil.com.cn/Photo by Dai Ke)
