181019-M-PR541-758 REYKJAVIK, Iceland (Oct. 19, 2018) U.S. Marines with the 24th Marine Expeditionary Unit conduct cold-weather training inland, Iceland, Oct. 19, 2018, during Exercise Trident Juncture 18. Trident Juncture training in Iceland promotes key elements of preparing Marines to conduct follow-on training in Norway in the later part of the exercise. (U.S. Marine Corps photo by Lance Cpl. Menelik Collins/Released)