Less than a year after the assassination of President Kennedy brought Lyndon B. Johnson to the White House, Harold Wilson became British Prime Minister. Over the next four years, the two men governed their countries through unprecedented crises, both domestic and international. To provide a better understanding of the transatlantic relationship, this volume provides for the first time all the correspondence between Wilson and Johnson from the time Wilson became Prime Minister in October 1964 until Johnson stepped down as President in January 1969. This period witnessed Britain