#naval_unit__navalunit  a military unit that is part of a navy
  supertype:  military_unit__military_force__force  a unit that is part of some military service; "he sent Caesar a force of six thousand men"
  member of:  navy
  subtype:  US_Marine_Corps__Marine_Corps  an amphibious division of the United States Navy
  subtype:  division.naval_unit  a group of ships of similar type
  subtype:  squadron.naval_unit  a naval unit that is detached from the fleet for a particular task
     subtype:  escadrille.squadron  a small squadron

No statement uses or specializes naval_unit; click here to add one.