Règle correspondante
China
Practice Relating to Rule 62. Improper Use of Flags or Military Emblems, Insignia or Uniforms of the Adversary
During the Chinese civil war, the Chinese Communist Party denounced the use of Red Army uniforms by Nationalist soldiers. The uniforms were used while committing reprehensible acts to discredit the Red Army. According to the Report on the Practice of China, soldiers captured while wearing the Red Army uniform were still treated as prisoners of war. 
Report on the Practice of China, 1997, Chapter 2.6. (No source or document is cited.)