Chief Warrant Officer 2 Bryce Yarbrough, a UH-60 Black

Chief Warrant Officer 2 Bryce Yarbrough, a UH-60 Black Hawk helicopter pilot with Company C, 2nd General Support Aviation Battalion, 1st Aviation Regiment, gives a thumbs up during engine startup procedures with his copilot, Chief Warrant Officer 3 Daniel Sternberg, while preparing for an unpartnered medical evacuation mission in support of a critically injured Afghan National Army soldier in Zabul province, Afghanistan Jan. 2, 2014. (U.S. Army photo by Capt. John Bolton)