The Oglala-Lakota warrior-statesman Red Cloud was the only American Indian in history to defeat the United States Army in a war, forcing the government to negotiate for peace on his terms. At the peak of Red Cloud's powers the Sioux could claim control of one-fifth of the contiguous United States and the loyalty of thousands of fierce fighters. But the fog of history has left Red Cloud strangely obscured. Now, thanks to the rediscovery of a lost autobiography, and painstaking research by two award-winning authors, the story of our nation's most powerful and successful Indian warrior can finally be told. In "The Heart of Everything That Is," Bob Drury and Tom Clavin, the New York Times bestselling authors of "Halsey's Typhoon," restore Red Cloud to his rightful place in American history in a sweeping and dramatic narrative based on years of primary research. Drury and Clavin discussed their new book.