The film commemorates the bravery of these "student volunteer forces" who fought in their school uniforms. The real-life battle took place on August 11, 1950 , and resulted in the deaths of most of the 71 students. Where to Watch (Mongolian) You can find this movie with Mongolian dubbing/subtitles
The film is anchored by a stellar cast:
To understand the search intent, we must break the keyword into three distinct parts: 71 Into The Fire Mongol Heleer