U.S. Marine Corps Sgt Ian Kozlik and his Military Working Dog (MWD) PPatriot, currently assigned to the MWD Team Deployment Training Course, conduct a training operation on Yuma Proving Grounds, Jan. 10, 2020. The MWD Team Deployment Training Course is a 3-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 John Hall)