U.S. Marine Corps Lt. Gen. Robert Hedelund, right,

U.S. Marine Corps Lt. Gen. Robert Hedelund, right, commanding general of II Marine Expeditionary Force, is shown a 3D printed air vent by Col. Boyd Miller, commanding officer of 2nd Marine Logistics Group-Forward, during a tour of Camp Frigaard in Hell, Norway, Oct. 28, 2018. Hedelund visited Marines to tour field installations during Trident Juncture 18. Trident Juncture 18 enhances the U.S. and NATO Allies’ and partners’ abilities to work together collectively to conduct military operations under challenging conditions. (U.S. Marine Corps photo by Lance Cpl. Scott R. Jenkins)