Two J-10 fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command take off in echelon formation for an aerial combat flight training exercise on December 30, 2020.Photo:China Military

Two J-10 fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command take off in echelon formation for an aerial combat flight training exercise on December 30, 2020.Photo:China Military

A J-10 fighter jet attached to an aviation brigade of the air force under the PLA Southern Theater Command takes off for an aerial combat flight training exercise on December 30, 2020. Photo:China Military

Two J-10 fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command perform aerobatic flight during an aerial combat flight training exercise on December 30, 2020.Photo:China Military

Two J-10 fighter jets attached to an aviation brigade of the air force under the PLA Southern Theater Command taxi to the takeoff point during an aerial combat flight training exercise on December 30, 2020.Photo:China Military