MARINE CORPS AIR STATION YUMA, Ariz. -- U.S. Marine Corps K-9 handlers currently assigned to the Military Working Dog (MWD Team Deployment Training course pose for a photo with their MWD while conducting detection training on the Yuma Proving Ground (YPG), Feb. 25, 2019. The MWD Team Deployment Training Course is a three-week long course where MWD Handlers from all three Marine Expeditionary Forces advance their dog team capabilities by focusing on teaching teams to become effective and lethal assets. (U.S. Marine Corps photo by Lance Cpl. Joel Soriano)