U.S. Marine Sgt. Chad Skaggs, right, shouts directions

U.S. Marine Sgt. Chad Skaggs, right, shouts directions to Lance Cpl. Daniel Del Rio during immediate-action drills aboard USS Rushmore (LSD 47) at sea in the Pacific Ocean, June 1, 2015. Skaggs is a squad leader and Del Rio is a rifleman with Kilo Company, Battalion Landing Team 3rd Battalion, 1st Marine Regiment, 15th Marine Expeditionary Unit. Squad leaders are charged with ensuring their Marines maintain a combat mindset while at sea. BLT 3/1 constantly trains for the unknown in order to respond to the needs of the MEU while deployed. (U.S. Marine Corps photo by Sgt. Emmanuel Ramos/Released)