campaign vs fighting

campaign

verb
  • Consistently ride in races for a racing season. 

  • To take part in a campaign. 

noun
  • The period during which a blast furnace is continuously in operation. 

  • A series of operations undertaken to achieve a set goal. 

fighting

adj
  • Engaged in war or other conflict. 

  • Apt to provoke a fight. 

noun
  • A fight or battle; an occasion on which people fight 

  • The act or process of contending; violence or conflict. 

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