German Shepherds are considered to be one of the breeds that don’t require much time and effort to train. These dogs are extremely smart and capable of going to extreme lengths to protect their owners. This is why German Shepherds make for excellent police dogs and are often used in military practices. They work very closely with their human partners and have excellent results fighting in the first line of defense. The video below is a great example that shows the level of performance these dogs can achieve through proper training and constant practice. Get ready to be impressed.