pacificator

/pəˈsɪfɪˌkeɪtər/
noun
  1. A person or thing that brings peace or ends a conflict.
    • She was known as a pacificator who could resolve arguments between coworkers.
    • The wise old chief acted as a pacificator between the warring villages.
    • The United Nations sent a pacificator to mediate the border dispute.
Antonyms
What does "pacificator" mean? | whatsthatwordmean | whatsthatwordmean