U.S. Marine Corps Cpl. Nicholas Chieu sits on the ramp of a crew chief aboard a CH-53E Sea Stallion helicopter while flying to participate in a combined helicopter assault training near Pinheiro Da Cruz Beach, Portugal, Oct. 21, 2015, during exercise Trident Juncture 15. Chieu is a crew chief assigned to the 26th Marine Expeditionary Unit, embarked aboard the amphibious transport dock ship USS Arlington. U.S. Marine Corps photo by Sgt. Austin Long