Command Authority

Command Authority is a techno-thriller novel, written by Tom Clancy and co-written with Mark Greaney, and published on December 3, 2013. It is Clancy's last major work of fiction and was released two months after his death. Set during the Cold War and after the events of Threat Vector (2012), the novel features President Jack Ryan and The Campus as they must deal with Russian dictator Valeri Volodin, a character widely noted as similar to real-life Russian president Vladimir Putin. The book debuted at number one on the New York Times bestseller list.