NATO Allies Respond to Russian Threats with Troop Deployments in Eastern Europe.

Eastern European NATO countries have warned that the deployment of Wagner's Russian mercenary troops to Belarus would create greater regional instability. However, NATO Secretary General Jens Stoltenberg said the alliance is ready to defend itself against any threat. Wagner boss Yevgeny Prigozhin arrived in Belarus on Tuesday under a deal negotiated by President Alexander Lukashenko that ended the mercenaries' mutiny in Russia on Saturday.