Starfleet Academy Courses. Subspace Communication: Ship commanders also use subspace communication to transmit reports on their various missions to Starfleet Command, solicit suggestions, make requests, monitor the status of other ships, and issue other commands. See: ENT: "Shockwave"; TOS: "Balance of Terror"; Star Trek II: The Wrath of Khan; TNG: "The Best of Both Worlds"; VOY: "Friendship One"; etc. Star Trek Starfleet Command | Starfleet Academy

Starfleet Academy. Courses. Ranks of Starfleet. Starfleet ranks are identifying titles of rank for the officers and enlisted members of Starfleet denoting the chain of command under both United Earth and the United Federation of Planets. These titles were generally adapted from earlier Earth naval forces. Star Trek Starfleet Command | Starfleet Academy