Collocations for faction - noun

dominant, leading, main, major | internal | competing, opposing, rival, warring | breakaway | dissident, rebel | disaffected | military, parliamentary, political | conservative, hard-line, left-wing, liberal, moderate, radical, right-wing | anti-reform, anti-talks, etc.

lead

~ in
the largest faction in the civil war

~ within
the dominant faction within the government