<Ul> <Li> Chairman of the Joint Chiefs of Staff </Li> <Li> Vice Chairman of the Joint Chiefs of Staff </Li> </Ul> <Li> Chairman of the Joint Chiefs of Staff </Li> <Li> Vice Chairman of the Joint Chiefs of Staff </Li> <P> When compared to each other, seniority among the service heads is determined by date of when the officer assumed office . Externally, the standing of each service head is determined by the date of the creation of the position as follows . </P>

Who holds the highest rank in the military