Ricardo Sanchez, the commander of U.S. Forces in Iraq in 2003-2004, has written a new memoir, Wiser in Battle: A Soldier's Story, an account of his life and his service in Iraq. Sanchez was a three-star general — and the military's senior Hispanic officer — when he led U.S. forces in the first year of the war. He was relieved of his command by Secretary of Defense Donald Rumsfeld in 2004 following the revelations of the abuse of prisoners at Abu Ghraib prison. In 2005, Marine General Peter Pace, the new chairman of the Joint Chiefs of Staff, called him to say his career was over and he wouldn't get the promotion to a full general — four stars — that Sanchez says he was promised. Six months later, at Rumsfeld's request, he showed up at the Pentagon for a meeting with the defense secretary shortly before retiring. In this exclusive excerpt, Sanchez details what happened next: