Dickin Medal given in the Uk for “animals that have displayed conspicuous gallantry or devotion to duty while serving or associated with any branch of the Armed Forces or Civil Defence Units.”
https://en.wikipedia.org/wiki/Dickin_Medal
Chips, a U.S. Army dog that attacked a machine-gun nest during World War II was posthumously awarded Britain’s highest honor for animal bravery:
Lucca, a Marine Corps German Shepard won the medal after losing a leg in Afghanistan:
https://www.youtube.com/watch?v=ppckrwZd6Bw
These four military dogs won the American Humane Lois Pope K-9 Medal of Courage:
Then there’s also Sergeant Reckless, the Army horse that actually was promoted to the rank during the Korean War:
https://en.wikipedia.org/wiki/Sergeant_Reckless
You forgot about Sergeant Stubby from World War I.