U.S. Marines with 2d Combat Engineer Battalion, 2d Marine Division, cross a gap with a viper bridge during viper bridge training near Ostersund, Sweden, April 17, 2023. Marines are deployed to Norway as part of Marine Rotational Forces Europe 23.1 which 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 Sgt. Christian M. Garcia) - U.S. Marines with 2d Combat Engineer Battalion, 2d Marine Division, cross a gap with a viper bridge during viper bridge training near Ostersund, Sweden, April 17, 2023. Marines are deployed to Norway as part of Marine Rotational Forces Europe 23.1 which 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 Sgt. Christian M. Garcia)