#emplacement  military installation consisting of a prepared position for siting a weapon
  supertype:  #military_installation  any facility servicing military forces
  subtype:  #gun_emplacement__gunemplacement__weapons_emplacement__weaponsemplacement  an emplacement for a gun
     subtype:  #nest.gun_emplacement  a kind of gun emplacement; "a machine-gun nest"; "a nest of snipers"
     subtype:  #pillbox  a small enclosed gun emplacement (usually of fortified concrete)

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