The Macmillan-Eisenhower Correspondence provides, for the first time, an edition of the messages exchanged between Harold Macmillan and Dwight D. Eisenhower during their tenures as national leaders in the late 1950s. The collection consists of more than 400 letters, cables and transcripts of telephone conversations. This extensive correspondence reveals the agreements and disagreements between Macmillan and Eisenhower and their approaches to the major political issues of their time. The correspondence also shows how Macmillan and Eisenhower preserved and strengthened the Anglo-American alliance at a critical time in the history of the Cold War.