A U.S. Army soldier performs a pre-flight system check on a Black Hawk helicopter before a flight at Forward Operating Base Fenty, Kunar province, Afghanistan, on April 15, 2010. This Task Force Lighthorse mission includes soldiers from Charlie Company, 4th Battalion, 3rd Aviation Regiment with the 3rd Squadron, 17th Cavalry Regiment, 10th Combat Aviation Brigade, 10th Mountain Division. The preparations are for a leaflet drop.