I have a friend who is looking to find a short sci-fi story called "Sarge." The story I am looking for starts off as a letter or message to his adversaries. It is first person from the dog's point of view. He is a hybrid dog or a cyborg dog. He explains in the letter how he was tasked by his recently late owner/ handler to protect a little girl. I am pretty sure the whole story is this message or letter to whom ever is trying to harm the little girl. It was published in a collection of short stories sometime in the 70s or 80s. Can anyone help?
"Sergeant Chip" - 2004 - Bradley Denton
The story is told from the point of view of Chip, a specially trained military dog that has been implanted with a microchip that allows him to communicate with his trainer, Captain Dial. The two of them put on many military demonstrations until they are called to active duty in the war. In the war they are caught in an unexpected ambush and eventually come to realize who the "real" enemy is.