Since the inception of space exploration, many of the men and women who journeyed into space had been active or former military personnel.  With the advent of SEDA in the mid-21st century, and particularly in light of its proposed defense role, it was decided that the agency should adopt military ranks and culture of its own.  One school of thought advocated the use of Air Force terminology, given that space-going vehicles were designed and operated much like aircraft.  The prevailing view, however, held that naval terminology would be most appropriate given the anticipated complexity and long service requirements of future spacecraft.  With various operational departments and crew living aboard the vessels for years at a time, it was argued that the traditional culture and structure of navies from around the world would provide the best analog.  Sometimes derisively called “Trekkies,” these naval proponents ultimately won out.  Today, SEDA personnel carry on the ancient traditions of sea-farers, adapting them to the times, and adding some of their own.

See also Ranks