SHERIDAN LAKE, British Columbia (March 14, 2023) Divers conduct an emergency search procedures drill under the ice of Sheridan Lake in British Columbia, Canada, while participating in an ice diving exercise involving Mobile Diving and Salvage Unit (MDSU) 1 and the Canadian Armed Forces' Fleet Diving Unit Pacific, March 14, 2023. The ice diving exercise enhanced interoperability between U.S. and Canadian diving units by accomplishing joint technical diving and unit-level training evolutions. MDSU-1 is a component of Explosive Ordnance Disposal Group (EODGRU) 1 that provides combatant commanders the expeditionary capability to clear ports, piers and waterways; assist vessels in distress; and conduct salvage of ships, aircraft and other objects from the water. (U.S. Navy photo)