Many of the participants in this story generously shared their knowledge with me and kindly reviewed my efforts. My footnotes acknowledge my debt to them. Nevertheless, two are singled out here for special mention. James C. Evans, former counselor to the Secretary of Defense for racial affairs, has been an endless source of information on race relations in the military. If I sometimes disagreed with his interpretations and assessments, I never doubted his total dedication to the cause of the black serviceman. I owe a similar debt to Lt. Comdr. Dennis D. Nelson (USN Ret.) for sharing his intimate understanding of race relations in the Navy. A resourceful man with a sure social touch, he must have been one hell of a sailor. I want to note the special contribution of several historians. Martin Blumenson was first assigned to this project, and before leaving the Center of Military History he assembled research material that proved most helpful. My former colleague John Bernard Corr prepared a study on the National Guard upon which my account of the guard is based. In addition, he patiently reviewed many pages of the draft (p. xii) manuscript. His keen insights and sensitive understanding were invaluable to me. Professors Jack D. Foner and Marie Carolyn Klinkhammer provided particularly helpful suggestions in conjunction with their reviews of the manuscript. Samuel B. Warner, who before his untimely death was a historian in the Joint Chiefs of Staff as well as a colleague of Lee Nichols on some of that reporter's civil rights investigations, also contributed generously of his talents and lent his support in the early days of my work. Finally, I am grateful for the advice of my colleague Ronald H. Spector at several key points in the preparation of this history. I have received much help from archivists and librarians, especially the resourceful William H. Cunliffe and Lois Aldridge (now retired) of the National Archives and Dean C. Allard of the Naval Historical Center. Although the fruits of their scholarship appear often in my footnotes, three fellow researchers in the field deserve special mention: Maj. Alan M. Osur and Lt. Col. Alan L. Gropman of the U.S. Air Force and Ralph W. Donnelly, former member of the U.S. Marine Corps Historical Center. I have benefited from our exchange of ideas and have had the advantage of their reviews of the manuscript.