 Proud American, I'm Tonya J. Powers. In 1970, Army Corporal Dave Berlinghoff was on the battlefield in Vietnam. There was a tremendous explosion and a flash of light, and I remember being in the air somewhere, but then I felt the thump when I came back down. Sergeant Daniel Creed heard the call for a medevac helicopter. The pilots, what they did for the guys on the ground, they always came. Army Major Dave Lutkenhaus was the pilot.