A fighter jet attached to an aviation brigade of the air force under the PLA Southern Theater Command soars into the air during a flight training exercise in early December, 2020. (eng.chinamil.com.cn/Photo by Lu Shiqiang)

Fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command taxi on the runway before takeoff during a flight training exercise in early December, 2020. (eng.chinamil.com.cn/Photo by Lu Shiqiang)

Fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command taxi on the runway before takeoff during a flight training exercise in early December, 2020. (eng.chinamil.com.cn/Photo by Lu Shiqiang)

Fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command taxi on the runway before takeoff during a flight training exercise in early December, 2020. (eng.chinamil.com.cn/Photo by Lu Shiqiang)