shootout vs warfare

shootout

noun
  • A decisive battle, especially a gunfight. 

  • A series of penalty shots during which a tied game is resolved. 

  • A multitable poker tournament in which only the last player on a table goes on to the next. 

  • A match in which both teams score highly. 

  • A penalty shootout. 

warfare

noun
  • The waging of war or armed conflict against an enemy. 

  • Military operations of some particular kind e.g. guerrilla warfare. 

verb
  • To lead a military life; to carry on continual wars. 

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