crusader vs defender

crusader

noun
  • A fighter in the medieval Crusades who had taken the Cross. 

  • An American, especially a soldier or leader who wages war against Islamist militants. 

  • the crusaders of the Middle Ages 

  • A Westerner; a Christian, especially of European descent or a missionary. 

  • A person engaged in a crusade. 

  • (either attributively or in the plural) The United States and its Western allies. 

defender

noun
  • A fighter who seeks to repel an attack. 

  • A defendant in a civil action. 

  • Someone who defends people or property. 

  • A lawyer who represents defendants, especially a public defender; a defense attorney (US) or defence counsel (UK). 

  • One of the players whose primary task is to prevent the opposition from scoring. 

How often have the words crusader and defender occurred in a corpus of books? (source: Google Ngram Viewer )