The Wagner Group is a name that seems to be coming up a lot lately, whether it’s in connection with the war in Ukraine or the fighting in Sudan. Today on “Post Reports,” reporter Greg Miller unpacks the origins of this mercenary network and its growth fueling instability around the world.The Wagner Group operated in the shadows for years, its network of mercenary forces aiding the Russian government in military operations in places such as Ukraine. In the time since, the Wagner Group has expanded and morphed well-beyond Russia’s borders, fueling instability and helping autocrats maintain or challenge power through disinformation campaigns and building up their military.But according to newly leaked U.S. intelligence documents, the Wagner Group is becoming even more “nefarious,” Greg Miller, an international investigative reporter, tells “Post Reports.”“It's actually trying to destabilize parts of Africa so that then it can again back Russia’s preferred and favored candidates,” as it seeks to further gain wealth and resources of its own, Miller explains. Read more: Wagner Group surges in Africa as U.S. influence fades, leak reveals.Russian mercenaries are closely linked with Sudan’s warring generals. What is the Wagner Group, the Russian mercenary outfit in Ukraine?