belligerent

adjective | \ bə-ˈli-jə-rənt \ | bel·lig·er·ent
  1. : waging war : carrying on war; specifically : belonging to or recognized as an organized military power protected by and subject to the laws of war : belonging to or recognized as an organized military power protected by and subject to the laws of war

  1. : inclined to or exhibiting hostility or a combative temperament

belligerent

noun
  1. : a belligerent nation, state, or person