Military dog is an animal with high nerve activity function. Its ability to distinguish smell is ten thousand times higher than that of human beings, and its hearing is 16 times higher than that of human beings. Broad vision, weak illumination, good at observing things at night. After training, military dogs can undertake tasks such as tracking, identification, vigilance, guard, patrol, search, communication, carrying bombs, detecting and searching drugs and explosives. He is a hero in marching and fighting and solving criminal cases. Since ancient times, he has left many stories about military dogs, and there are also many movies that reflect the spirit of military dogs.