First, military dogs with excellent genes are generally used for military purposes after training, so the selection of military dogs is very strict. A dog that can become a military dog must be very powerful. As a military dog, dogs are required to have a high degree of nerve activity, and their sense of smell and hearing are ten times or even dozens of times higher than ordinary dogs. They also need to have very high vision and the ability to run and jump at night. In order to meet specific standards, they must go through different levels of screening. There are very few breeds that can meet this standard. Such dogs generally have innate advantages. After training, they can help soldiers undertake many projects that humans can't complete, such as giving full play to dogs' odor recognition ability to track and guard. Only dogs with excellent breeds can be selected as military dogs for the next training.
Second, training the day after tomorrow improves self-control. Dogs that can be selected as military dogs are generally treated well, giving them the best food and the best rest place, as well as the most cruel training and exercise. After many military dogs are selected, a specific soldier will train them. In this training, there is a great affection between soldiers and military dogs, so military dogs can protect soldiers to a certain extent, which is one of the reasons why military dogs have long been liked by people. Many military dogs gave their lives to protect their owners, so the affection between military dogs and soldiers is very deep. Moreover, generally speaking, after selecting their own military dogs, soldiers will give them a series of training, teach them to understand their own language and expressions, and teach them to make quick and agile responses in order to cooperate with them in the later stage. These military dogs themselves are very smart. After a series of training the day after tomorrow, they can react to the soldiers' expressions without any difference, which is very powerful and one of the characteristics that military dogs are different from ordinary dogs.
The reason why military dogs are trained to resist food is mainly to prevent military dogs from being tempted by other things in their later work. The self-control of military forces is so high, mainly because of their own smart genes and variety characteristics, but also because of the long-term training and guidance of soldiers. Only innate advantages and acquired training can create military dogs with particularly strong self-control.