It's Tight, but hardly chokes (2017)

"Fathers and Sons" is a short documentary project of Kaan Müjdeci that was shot in 2012 during the research for director's first feature film entitled SIVAS. Fathers and Sons tells the story of kangal dogs and their owners. Kangal is a breed of shepherd’s dog, unique to the land of Anatolia. The owners fight their kangals and make money off them from bettings. However, they treat and take care of their dogs like their sons, sometimes even better. Even though their sons may get hurt, a father still takes pride in having sent his son to the military, doesn’t he? Fathers and Sons is about the duality of this father-son relationship. But after all, every father would like to be proud of his son.

1945 film that reveals the training that Alsatian dogs would have received for war as well as for non-combative work. (source: BFI, https://www2.bfi.org.uk/films-tv-people/565ce2f7cd29a)