Well done JENKINS.
A little known piece of post-WWII history. I got the photo from here:
https://en.wikipedia.org/wiki/War_in_Vietnam_(1945–46)
The caption reads:
Japanese POW's under British supervision repairing the taxiing strip at Saigon airfield, with behind them RAF de Havilland Mosquito aircraft, December 1945
Probably Tan Son Nhut, although it might be Bien Hoa.
JENKINS has control.