SETERMOEN, Norway (March 19, 2021) U.S. Marines with Marine Rotational Force Europe 21.1 (MRF-E), Marine Forces Europe and Africa, participate in the Polar Plunge as a part of extreme-cold weather training in Setermoen, Norway, March 19, 2021. MRF-E focuses on regional engagements throughout Europe by conducting various exercises, arctic cold-weather and mountain warfare training, and military-to-military engagements, which enhance overall interoperability of the U.S. Marine Corps with allies and partners. (U.S. Marine Corps photo by Cpl. Andrew J. Smith)