belligerent vs fighting

belligerent

adj
  • Engaged in warfare, warring. 

  • Eager to go to war, warlike. 

  • Of or pertaining to war. 

  • Uncooperative. 

  • Aggressively hostile, eager to fight. 

  • Acting violently towards others. 

noun
  • A state or other armed participant in warfare 

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 belligerent and fighting occurred in a corpus of books? (source: Google Ngram Viewer )