State of the Union (Scot Harvath #3) by Brad Thor

From the national bestselling author of "The Lions of Lucerne" and "Path of the Assassin" comes another electrifying international thriller featuring all-American hero Scot Harvath, as he plunges into the frigid heart of the Russian tundra to save the fragile state of the union.On a cold January morning, the United States awakes to discover that an old enemy, one long believed dead and buried, has crawled out of its grave to lay siege to the world's only superpower.