cobelligerent: Meaning and Definition of

co•bel•lig•er•ent

Pronunciation: (kō"bu-lij'ur-unt), [key]
— n.
  1. a state or individual that cooperates with, but is not bound by a formal alliance to another in waging war.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.