Letters and cards are written for a Valentine’s Day care package to Chief Master Sgt. Guillermo Castillo, Air Combat Command Inspector General superintendent of the maintenance division, Jan. 30, 2013, at the Castillo’s home in Yorktown, Va. Mrs. Castillo said hand-written notes and letters are a way to nurture the relationship across the miles. (U.S. Air Force photo by Staff Sgt. Katie Gar Ward/Released)