warmonger

/ˈwɔrˌmɒŋɡər/
noun
  1. A person who encourages or promotes war, especially for personal or political gain.
    • The dictator was often called a warmonger for starting conflicts with neighboring countries.
    • Critics accused the politician of being a warmonger who wanted to send troops overseas.
    • The newspaper editorial warned that the general was a warmonger pushing for an unnecessary invasion.
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