Marine Corps Cpl. Rolando Sulaica commands Riggs, his military working dog, to bite a simulated attacker during a training exercise aboard the amphibious assault ship USS Wasp in the Pacific Ocean, April 8, 2018. Sulaica is a military working dog handler assigned to Combat Logistics Battalion 31, 31st Marine Expeditionary Unit. Marine Corps photo by Cpl. Bernadette Wildes