Senior Airman Kyle Zastrow performs an elbow weld while Senior Airman Isa Holland observes his work July 12, 2013, in Southwest Asia. Zastrow is using a metal inert gas welder and being trained on welding, which is not typical work for his career field. Holland is his trainer and will provide guidance on several aspects of his job during their deployment. Both are members of the combat metals shop, which uses two different career fields for a broader capability. Zastrow and Holland are deployed to the 386th Expeditionary Maintenance Squadron. (U.S. Air Force photo/Master Sgt. Christopher A. Campbell)