Airman 1st Class Ingrid Tamayo keeps tension on the skin going over the arches of a California Medium Shelter System Feb. 17 used to house Airmen at an air base in Southwest Asia. Airman Tamayo is a structural apprentice with the 379th Expeditionary Civil Engineer Squadron. She is from Los Angeles, Calif., and is deployed from Travis Air Force Base, Calif. (U.S. Air Force photo/Airman 1st Class Andrew Satran)