<P> A U.S. Navy Chief petty officer's rate emblem is symbolized by a fouled anchor with the letters "USN" centered on the anchor . Officially the letters stand for United States Navy . According to naval tradition, the letters are symbolic of the following: </P> <Ul> <Li> Unity: to symbolize "cooperation, maintaining harmony and continuity of purpose and action ." </Li> <Li> Service: to symbolize service "to our God, our fellow man and our Navy ." </Li> <Li> Navigation: "to keep ourselves on a true course so that we may walk upright before God and man in our transactions with all mankind, but especially with our fellow Chiefs ." </Li> </Ul> <Li> Unity: to symbolize "cooperation, maintaining harmony and continuity of purpose and action ." </Li> <Li> Service: to symbolize service "to our God, our fellow man and our Navy ." </Li>

What does usn stand for on the anchor