U. S. Marine Corps 1st Lt. Thomas A. White, left, Capt.

U. S. Marine Corps 1st Lt. Thomas A. White, left, Capt. Mark P. Paige, center, and 1st Lt. Benjamin G. Anderson, all infantry officers with Black Sea Rotational Force, crest a hill as they near the halfway checkpoint of the 50 kilometer ultra-marathon in Bran, Romania, May 21, 2016. The 50K race is labeled as a difficult ultra-marathon with an elevation gain of 3,266 meters that crosses what is known as the most beautiful and mysterious regions of Eastern Europe. Marines and sailors participated in this Morale, Welfare, and Recreation (MWR) trip to challenge themselves physically, mentally and to build esprit de corps. (U.S. Marine Corps photo by Cpl. Kelly L. Street, 2D MARDIV COMCAM/Released)