An American Stryker Combat Vehicle, assigned to 1st Squadron, 2nd Cavalry Regiment, passes by Romanian locals as it convoys to conduct a Wet Gap Crossing, in Ramnicu Valcea, Romania, July 16, 2017. Various NATO nations conduct a Wet Gap Crossing across the Olt River, while engaging in simulated contact with opposing forces (OPFOR), as part of Exercise Saber Guardian 17. Saber Guardian is a multinational exercise that spans across Bulgaria, Hungary and Romania with more than 25,000 service members from 22 allied and partner nations. (U.S. Army Photo by Spc. Emily Houdershieldt)