Romulan Guard

• Overarching Romulan military structure (TNG: "Unification II")
• Divided into legions
  • First Legion
    • More commonly known as the Romulan Star Navy (TLE novel: Serpents Among the Ruins)
  • Fifth Legion (ENT Novel: Kobayashi Maru)
    • Military research and development (ENT Novel: Kobayashi Maru)
• Ranks
  • Officers
    • Officer training at Imperial War College (TNG: "Face of the Enemy")
    • Ranking, highest to lowest:
      • Admiral
      • Commander (equivalent to Captain)
      • Subcommander (equivalent to Commander)
      • Centurion (equivalent to Lieutenant Commander)
      • Lieutenant (equivalent to Lieutenant)
      • Sublieutenant (equivalent to Ensign)
    • Officers are usually expected to serve until retirement or death, but resignations are allowed
  • Enlisted
    • Highest to lowest:
      • Decurion (equivalent-ish to Petty Officer)
      • Uhlan (equivalent to Crewman)