#military_campaign__campaign  several related operations aimed at achieving a particular goal (usually within geographical and temporal constraints)
  supertype:  military_operation__operation  a military or naval action (as a maneuver or campaign); "it was a joint operation of the navy and air force"
  instance:  Dardanelles_campaign  Okinawa_campaign  Petersburg_Campaign  Wilderness_Campaign
  subtype:  military_expedition__expedition__hostile_expedition__hostileexpedition  a military campaign designed to achieve a specific objective in a foreign country
     subtype:  Crusade  any of the more or less continuous military expeditions in the 11-13th centuries when Christian powers of Europe tried to recapture the Holy Land from the Muslims
        instance:  First_Crusade  Second_Crusade  Third_Crusade  Fourth_Crusade  Fifth_Crusade  Sixth_Crusade  Seventh_Crusade

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