U.S. airmen with the 158th Fighter Wing Security Forces Squadron participate in annual proficiency training by firing hundreds of rounds with the M240B and M249 machine guns at the Camp Ethan Allen Training Site in Jerhico, Vt., June 7. The annual training allows Airmen to fire heavy machine guns to hone in on their individual and team skills as well as their weaponry tactics. (U.S. Air Force Photo by Senior Airmen Jonathon Alderman)