#corps__corp  an army unit usually consisting of two or more divisions
  supertype:  army_unit  a military unit that is part of an army
  subtype:  Reserve_Officers_Training_Corps  a training program to prepare college students to be commissioned officers
  member of:  regular_army
  member:  division.army_unit  an army unit large enough to sustain combat; "two infantry divisions were held in reserve"
     member:  battle_group  an army unit usually consisting of five companies
        member:  company.army_unit  small military unit; usually two or three platoons
           member:  platoon  a military unit that is a subdivision of a company; usually has a headquarters and two or more squads; usually commanded by a lieutenant

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