U.S. Marine Corps Lance Cpl. Abraham Escobedo, top, with the 3rd Battalion, 8th Marine Regiment, assigned to Black Sea Rotational Force (BSRF) 14, demonstrates how to charge a .50-caliber machine gun to a Romanian boy April 9, 2014, at Mihail Kogalniceanu Air Base, Romania. BSRF is an annual multilateral security cooperation activity between the U.S. Marine Corps and partner nations in the Black Sea, Balkan and Caucasus regions designed to enhance participants collective professional military capacity, promote regional stability and build enduring relationships with partner nations.