A U.S. Marine pilot with Medium Tiltrotor Squadron 161 (Reinforced), 15th Marine Expeditionary Unit, lands an AV-8B Harrier aboard the USS Essex (LHD 2) during Amphibious Squadron/Marine Expeditionary Unit Integration Training (PMINT) off the coast of San Diego Feb. 24, 2015. This training prepares the Marines and sailors of the 15th MEU’s air combat element for future operations they may encounter in the upcoming deployment. (U.S. Marine Corps photo by Cpl. Steve H. Lopez/Released)