The newest electrifying thriller in the #1 New York Times-bestselling series has President Jack Ryan and his allies facing a treacherous foe threatening to unleash chaos around the globe. . . . When Russian President Valeri Volodin's ambitions are foiled in Dagestan, he faces a difficult choice. The oligarchs who support him expect a constant flow of graft, but with energy prices cratering, the Russian economy sputters to a virtual halt. Unable to...