belligerent

Noun
  1. Someone who fights (or is fighting) (synset 109958771)
Adjective
  1. Characteristic of an enemy or one eager to fight (synset 301247720)
    "aggressive acts against another country"; "a belligerent tone"
  2. Engaged in war (synset 301746786)
    "belligerent (or warring) nations"

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