Sgt. Cade Allen, a UH-1Y Venom crew chief with Marine Medium Tiltrotor Squadron 163 (Reinforced), 11th Marine Expeditionary Unit, scans the ground below on a flight during Realistic Urban Training exercise at Naval Air Facility, El Centro, Calif., Nov. 12, 2018. Crew chiefs act as another set of eyes for pilots and are responsible for the overall well-being of the helicopter and its crew, particularly the operations conducted in the rear of the aircraft. (U.S. Marine Corps photo by Cpl. Adam Dublinske) - Sgt. Cade Allen, a UH-1Y Venom crew chief with Marine Medium Tiltrotor Squadron 163 (Reinforced), 11th Marine Expeditionary Unit, scans the ground below on a flight during Realistic Urban Training exercise at Naval Air Facility, El Centro, Calif., Nov. 12, 2018. Crew chiefs act as another set of eyes for pilots and are responsible for the overall well-being of the helicopter and its crew, particularly the operations conducted in the rear of the aircraft. (U.S. Marine Corps photo by Cpl. Adam Dublinske)

180801-M-QP663-075.JPG - Marine Corps Mountain Warfare Training Center Bridgeport, CA – Lance Cpl. Phillip Strong, a rifleman with India Company, 3rd Battalion, 5th Marine Regiment, 1st Marine Division, participates in a hike before conducting cliff assault training during Mountain Training Exercise (MTX) 4-18 aboard Mountain Warfare Training Center Bridgeport, Calif., July 30, 2018. 3rd Bn., 5th Marines, participated in MTX 4-18 to evaluate their ability to conduct their core mission essential tasks before attaching to the 11th Marine Expeditionary Unit for its upcoming deployment. (U.S. Marine Corps photo by Cpl. Adam Dublinske)

MARINE CORPS BASE CAMP PENDLETON, Calif - Col. Fridrik Fridriksson, commanding officer of the 11th Marine Expeditionary Unit, presents a oar as a gift to Col. Ryuki Toyota, the commanding officer of the Western Army Infantry Regiment, Japan Ground Self Defense Force during the closing ceremony of exercise Iron Fist 2018, Feb. 12. Iron Fist is an annual, bilateral training exercise where U.S. and Japanese service members train together and share techniques, tactics and procedures to improve their combined operational capabilities. (U.S. Marine Corps photo by Cpl. Jacob A. Farbo) - MARINE CORPS BASE CAMP PENDLETON, Calif - Col. Fridrik Fridriksson, commanding officer of the 11th Marine Expeditionary Unit, presents a oar as a gift to Col. Ryuki Toyota, the commanding officer of the Western Army Infantry Regiment, Japan Ground Self Defense Force during the closing ceremony of exercise Iron Fist 2018, Feb. 12. Iron Fist is an annual, bilateral training exercise where U.S. and Japanese service members train together and share techniques, tactics and procedures to improve their combined operational capabilities. (U.S. Marine Corps photo by Cpl. Jacob A. Farbo)