Col. William E. Sousa, right, commanding officer of 25th Marine Regiment, 4th Marine Division, speaks to the junior enlisted Marines of 1st Battalion, 24th Marines, 25th Marines, 4th MarDiv, about their experiences throughout exercise Nordic Frost at Camp Ethan Allen Training Site in Jericho, Vt., Jan. 22, 2018. The exercise allowed Marines to demonstrate their ability to operate in a cold weather mountainous environment, conducting land navigation, marksmanship training, demolitions, call for fire training and other core competencies. (U.S. Marine Corps photo by Pfc. Samantha Schwoch/released)