The working dogs serve in different capacities. All are trained in sniffing/detecting either explosives or narcotics. This is helpful, especially in combat situations where IEDs (improvised explosive devices) are common. In fact, due to how warfare has changed, there is specialized training for dogs to detect IEDs. Dogs are able to be trained to detect such sensitive chemicals because they have a sense of smell fifty times stronger than a human. What these working dogs detect with their nose can be used as legal evidence, so dogs must remain certified in their sense detection. “… the dog must maintain, at a minimum, 95 percent accuracy to pass the certification.”
Working dogs go on patrols, act as sentries, and yes, they’re even trained to attack if needed. Some working dogs are even trained to be parachuted or ride in helicopters. Military dogs even serve in similar ways as their fellow civilian dogs such as service or therapy dogs in hospitals. The duties of military working dogs are evolving as the landscape of the modern military changes as well.