Pfc Alex Lopez, 2nd Combined Arms Platoon, Weapons Company, Battalion Landing Team, 1st Battalion, 6th Marine Regiment, 24th Marine Expeditionary Unit, NATO International Security Assistance Force, M249 Squad Automatic Weapon machine gunner, watches for enemy movement around a main supply road for the 24th MEU Marines. The 22-year-old from Youngstown, Ohio, and his fellow Marines have spent more than 120 hours waiting to counter enemy gunfire.