After a seemingly random terrorist bombing in the former Soviet Union kills two American spies, the CIA brings contract operative Avery back into the fold in this novel of global action and intrigue. Avery requires little convincing to take on the job. Among the casualties is a friend and former teammate. His search for answers will take him from the front lines of conflict in eastern Ukraine to the Caucasus Mountains, where a secret campaign is already underway to prepare the battlefield and destabilize an important NATO partner. The forces arrayed against Avery and his team include Russian spymasters, battle-tested mercenaries, and an army of highly trained and dedicated terrorists led by a dangerous new adversary. SUBVERSIVE ACTION takes readers deep into the shadowy realm of hybrid warfare and is sure to please fans of Vince Flynn and Andy McNab.