Monty worked as a Patrol Explosive Detector Dog with his handler, Brandon Liebert, who was a marine sergeant. Liebert spent three years with the dog and remembers taking Monty with him everywhere. When Liebert celebrated the Marine Corps Birthday with his colleagues and they all received steak, he asked that Monty receive one, too. Liebert says that Monty was assigned to another handler, a common situation with the military dogs, it was hard for him. "It's disconcerting," he said. "Especially when you've been together as long as we had."