The Pentagon has been called good and evil by many people, but for those who work there it is simply "The Building". This instantly recognizable five-pointed structure covers twenty-nine square acres of recovered swamp land, has five stories, and six million feet of floor space. From the beginning there has been more to the Pentagon than merely concrete and steel, and this is the inside story of the men and women who have walked the corridors of power and brought this building to life. From General George Marshall, and Secretary of War Henry Simpson - both charged with defeating Germany and Japan in World War II - to the whiz-kid generation bought in by Robert McNamara under John F Kennedy to combat the Communist threat, up to modern times and the restoration after the 9/11 attack, this book details the progress of this extraordinary building: the personalities, a full analysis of the politics at work both inside and outside the building, and the evolving role that the Pentagon plays in National Security - a story inextricably linked to the story of strength and power not only in America but across the world.