#battlefield__battleground__field_of_battle__field  a region where a battle is being (or has been) fought; "they made a tour of Civil War battlefields"
  supertype:  #piece_of_land__tract__piece_of_ground__parcel_of_land__parcel  an extended area of land
  subtype:  #Camlan  (Arthurian legend) the battlefield where King Arthur was mortally wounded
  instance:  #Armageddon
  part:  #battlefront__front__front_line__frontline  the line along which opposing armies face each other
  part:  #sector.piece_of_land  a portion of a military position

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