Penguin's Sentinel imprint has acquired a memoir by Donald Rumsfeld, Known and Unknown, which it plans to publish on January 25. The book, which will be embargoed until its release, is, said Adrian Zackheim, president and publisher of Sentinel, a work that "pulls no punches." The publisher is promising that the title is "filled with previously undisclosed details and insights about the Bush administration, 9/11, and the wars in Afghanistan and Iraq." Zackheim acquired the title from Bob Barnett.

Proceeds from the book are going to veterans charities supported by the Rumsfeld Foundation. Sentinel also said that, in addition to juicy tidbits about the last White House, the book will offer the former Sceretary of Defense's take on history, as he chronicles his youth during the Depression, his time in the Navy, the years he spent in Congress through to his time working for various presidents, including Nixon, Ford, and Reagan. Sentinel also said that Rumsfled will be relying on more than memory for the book, working off of "previously unreleased and recently declassified documents." The publisher said those documents will be published on a Web site that will go live once the book is released.