A pilot assigned to an aviation brigade of the air force under the PLA Southern Theater Command climbs into the cockpit of his J-10 fighter jet prior to a sky patrol mission on January 31, 2021. (eng.chinamil.com.cn/Photo by Wang Guoyun)

A J-10 fighter jet attached to an aviation brigade of the air force under the PLA Southern Theater Command taxies to the take-off point prior to a sky patrol mission on January 31, 2021. (eng.chinamil.com.cn/Photo by Wang Guoyun)

A pilot assigned to an aviation brigade of the air force under the PLA Southern Theater Command gets settled in the cockpit of his J-10 fighter jet during a sky patrol mission on January 31, 2021. (eng.chinamil.com.cn/Photo by Wang Guoyun)

A J-10 fighter jet attached to an aviation brigade of the air force under the PLA Southern Theater Command takes off for a sky patrol mission on January 31, 2021. (eng.chinamil.com.cn/Photo by Wang Guoyun)

A J-10 fighter jet attached to an aviation brigade of the air force under the PLA Southern Theater Command takes off for a sky patrol mission on January 31, 2021. (eng.chinamil.com.cn/Photo by Wang Guoyun)

A pilot assigned to an aviation brigade of the air force under the PLA Southern Theater Command navigates his J-10 fighter jet during a sky patrol mission on January 31, 2021. (eng.chinamil.com.cn/Photo by Wang Guoyun)