The 2012 Air Force Year in Photos gives a behind the scenes look at the lives of U.S. airmen serving at home and abroad. Here is a selection of their best photographs.
Master Sgt. Kevin Preston checks on an Afghan national in critical, but stable condition for transport, Forward Operating Base Tarin Kowt, Afghanistan, April 9, 2012. Preston is an aeromedical evacuation technician with the 651st Expeditionary Aeromedical Evacuation Squadron.Staff Sgt. Greg Biondo/U.S. Air Force