The U.S. Air Force has officially split up its Line of the Air Force promotion category, following a months-long effort to query officers about the initiative. The move puts greater emphasis on field-specific expertise during promotion. The service Oct. 21 announced the change will start in March 2020 for the next lieutenant colonel promotion board, marking the first major restructure to the talent management system since the Air Force was formed in 1947. Read more on Military.com.