Members of the Thai resistance movement, Seri Thai, pose for a photo. These men were trained by the British SOE and intended for covert operations behind enemy lines.

Seri Thai Commandos

Members of Seri Thai, a resistance group that existed in Thailand during the war, meet for a group photo in 1945. 

Seri Thai was one of the largest Allied resistance groups in the world (surpassing even the better known French resistance) and helped to conduct activities against both the Japanese and their Axis Thai allies. 

Seri Thai Meeting

An interesting photo (which, yes, I did first come across on wikipeida, though later sited through other sources) showing an extract from a Japanese handbook. This small book was meant to show to Japanese troops (mainly officers) who some of the key players were in the Chinese theater of the war, and how close a friend they were to Japan.
Pictured here is Altanochir, a Mongolian politician who served in the pro-Japanese Mengjiang government of Inner Mongolia under Prince Demchugdongrub. 