The film is based on a true story of a group of 71 undertrained and underarmed, outgunned student-soldiers of South Korea during the Korean War, who were mostly killed on August 11, 1950, during the Battle of P'ohang-dong. For 11 hours, they defended P'ohang-dong girls' middle school, a strategic point for safeguarding the Nakdong River, from an attack by overwhelming North Korean forces, the 766th Unit.
These 71 teenagers, most of whom had never shot a gun before, managed to hold out against the advancing North Korean army for 11 hours. Their heroic defense of the area was actually a turning point in the Korean War. 71: Into the Fire tells the story of these student-soldiers over the course of that fateful day.wiki
