At the end of 1942, the Japanese invaders and the Chinese army engaged in a fierce battle in Yunnan. The Chinese army suffered heavy casualties, with two to three thousand people trapped in the mountains and in urgent need of supplies and rescue. Under the banner of the Anti Japanese National United Front, the Communist Party sent elite soldiers and the Nationalist Party jointly organized a mysterious caravan to transport rescue supplies
At the end of 1942, the Japanese invaders and the Chinese army engaged in a fierce battle in Yunnan. The Chinese army suffered heavy casualties, with two to three thousand people trapped in the mountains and in urgent need of supplies and rescue. Under the banner of the Anti Japanese National United Front, the Communist Party sent elite soldiers and the Nationalist Party jointly organized a mysterious caravan to transport rescue supplies