There are so many ways a roll of film can get ruined before (and sometimes while) being developed that shooting with film often felt like a gamble, especially when shooting historical moments in time.
So it must take some kind of magical luck or divine intervention for 31 rolls of film to survive World War II in a soldier's bag and then manage to survive another 70 years intact before being developed by The Rescued Film Project.
See the entire gallery of images uncovered by The Rescued Film Project here
-Via mental_floss