guerrilla warfare vs musketeer

guerrilla warfare

noun
  • Combat using groups of irregular, light, mobile troops within areas occupied by an enemy force, usually through hit-and-run tactics. 

musketeer

noun
  • A foot soldier armed with a musket. 

  • A comrade or fellow. 

  • In 17th- and 18th-century France, a member of the royal household bodyguard. 

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