Here is how their service in the Great War differed from what military dogs had done before.
Russian, Swedish, Italian, Albanian, Belgian, and Bulgarian troops also used military dogs.
However, a few dogs from the United States did end up on the front lines.
World War I was the first war in which military dogs were mobilized on a massive, organized scale.
Major uses of military dogs in World War I. Watchdogs: Sentries, scouts, and guards.
With keen senses of sight, hearing, and smell, many military dogs were well-suited as watchdogs, especially at night.
“The animals that helped win World War I,” World War I: 100 Years Later series, Smithsonian.com, 5 May 2017. »