aggression vs defence

aggression

noun
  • Hostile or destructive behavior or actions. 

  • The practice or habit of launching attacks. 

  • The act of initiating hostilities or invasion. 

defence

noun
  • A strategy and tactics employed to prevent the other team from scoring; contrasted with offence. 

  • The portion of a team dedicated to preventing the other team from scoring; contrasted with offence. 

  • Government policy or (infra)structure related to the military. 

  • Something used to oppose attacks. 

  • The action of defending, of protecting from attack, danger or injury. 

  • An argument in support or justification of something. 

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