Navy mine countermeasures unit uses undersea drones in exercise By (0) Torpedo-shaped MK 18 unmanned underwater vehicles were involved in mine countermeasure certification exercises at Naval Support Activity Panama City, Fla., this month. Photo courtesy of EODMU2/Facebook April 26 (UPI) -- A mine countermeasures unit used unmanned undersea vehicles, or UUVs, in completing a certification exercise, the U.S. Navy said on Monday. A 27-person platoon of Explosive Ordnance Disposal Mobile Unit 2 completed a pre-deployment Expeditionary Mine Countermeasures Advanced Certification Exercise at Naval Support Activity Panama City, Fla., on April 16, with the involvement of Unmanned Undersea Vehicles and operators. Advertisement The exercise tested their ability to detect, identify and neutralize simulated mine threats, a Navy statement said.