U.S. Navy Petty Officer 2nd Class Darsean Sharp, hospital corpsman, Kunar Provincial Reconstruction Team medic at Camp Wright in Asadabad, Afghanistan, (left) and U.S. Navy Lt. Jed Juachon, (right), PRT medical officer, talk with U.S. Army Spc. Mark Bell (center), 1st Squadron, 221st Cavalry Regiment, National Guard, from Las Vegas, Nev., about donating blood, Jan. 5. Bell answered a call for immediate volunteers with a unique blood type to donate blood for an Afghan security guard who was in currently in surgery.