Judge advocates are often called "JAGs." The moniker is drawn from the name of our highest ranking attorney, who is called the Judge Advocate General. The Air Force's legal community, as a whole, is known as the Judge Advocate General's Corps.
A judge advocate is a uniformed military attorney. In the Air Force, judge advocates are appointed as military officers to provide legal advice to Air Force commanders on a variety of topics. Judge advocates also represent the Air Force in litigation, and perform a host of other duties.