Threat Vector

Mark Greaney writes action-packed thrillers that keep readers hooked. He's the author of exciting novels such as Commander-in-Chief and True Faith and Allegiance, delivering high-stakes suspense with every page.

Thomas Leo Clancy Jr. (1947-2013) was an American novelist from Baltimore, Maryland, best known for technically detailed espionage and military thrillers set during and after the Cold War, starting with The Hunt for Red October (1984) and the Jack Ryan series. He also co-wrote military non-fiction with serving and retired officers. After his death his name continued as a brand on novels, video games and franchise series (Op-Center, Net Force, Power Plays) written by other authors, so many "Tom C...