A team of Marines, with Black Sea Rotational Force, return to the starting location, after completing the land-navigation course, a section of Corporals Leadership Course at Mihail Kogalniceanu Air Base, Romania, Feb. 25, 2015. Land-navigation is a basic skill every Marine is required to know and is retaught during Corporals Leadership Course so as small unit leaders they can instruct their Marines to ensure they remain proficient. The Marines were participating in full-utilities, no-cover, land-navigation physical training.