defence vs preservation

defence

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

  • 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. 

  • An argument in support or justification of something. 

preservation

noun
  • The act of preserving; care to preserve; act of keeping from destruction, decay or any ill. 

  • The state of being preserved, how something has survived. 

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