Dogs have been used in warfare for centuries. They are used as guard dogs to protect camps from intruders, as sentries to detect and alert troops to potential attackers, and as attack dogs to help soldiers in combat. They can often be trained to detect things like bombs, drugs, or weapons, and can even be used to search for and rescue soldiers who are injured or lost. Dog handlers often develop strong bonds with the dogs they are paired with, which can help make them even better at their jobs.