FTP name this 1939 movie starring John Wayne as the Ringo Kid.
Near the end of this film, Luke Plummer is shown holding a pair of black aces and a pair of black eights, the so-called "dead man's hand."  The film is an adaptation of an Ernest Haycox story, itself based on Guy de Maupassant's "Boule de suif."  In the movie, the enemies are not Prussians, but Apaches, who famously don't simply shoot the horses that pull the titular conveyance, "Because that would have been the end of the movie," according to director John Ford.  FTP name this 1939 movie starring John Wayne as the Ringo Kid.
Near the end of this film, Luke Plummer is shown holding a pair of black aces and a pair of black eights, the so-called "dead man's hand."  
Stagecoach