Helpful Advice For United States Air Force Security Forces Troops and Supervisors The Security Forces career field in the Air Force is among the largest across the entire Air Force and covers a multitude of different tasks and jobs that you would never think of. In some ways that is a good thing because it keeps you on your toes and in other ways it can leave you feeling confused at times in knowing your true job description.  If you don't like something, change it. If you can't change it, change your attitude. As you begin changing your thinking, start immediately to change your behavior. Begin to act the part of the person you would like to become. Take action on your behavior....