U.S. flight instructor conducting a lesson for trainees (front row, center: Zhu Songgen)

Zhu Songgen with fellow cadets at the Thunderbird Field in the U.S.

Roster of the 12th Aviation Class at the Air Force Academy (names in red indicate those who fell during the War of Resistance).

Group photo of the second batch of Chinese air force cadets trained in the U.S.

Zhu Songgen with fellow cadet at the Thunderbird Field in the U.S.