Mike Carparelli
Blacks Law 5th Edition: Belligerent
In international law, as an adjective, it means engaged in lawful war. As a noun, it designates either of two nations which are actually in a state of war with each other, as well as their allies actively co-operating, as distinguished from a nation which takes no part in the war and maintains a strict indifference as between the contending parties,called a "neutraL" As a personality trait, refers to one who is overly assertive, hostile or combative.