INDIAN OCEAN (Jan. 10, 2021) Argo, a military working dog, indicates findings of simulated explosive material to his military working dog handler, U.S. Marine Corps Cpl. Jonathan Lacayo, both with 1st Law Enforcement Detachment, 15th Marine Expeditionary Unit (MEU), during explosives detection training aboard the amphibious transport dock ship USS Somerset (LPD 25). The Makin Island Amphibious Ready Group and the 15th MEU are conducting operations in the U.S. 6th Fleet area of responsibility. (U.S. Marine Corps photo by Lance Cpl. Mackenzie Binion)