Originally Posted by KJTrek
I always assumed there was an explanation in DS9 somehow, as I never watched the show. It is interesting though. Was Worf a commander in rank, or a lieutenant commander?
He was promoted to full Commander at the end of his first DS9 episode AND he now gets to wear the RED uniform of Command. At the end of DS9, it was implied that he was made the Federation Ambassador to Qo'noS and left DS9.