This accessible text explains how the Cold War originated and developed between 1941 and 1949 and involved the entire globe, with proxy wars being fought much to the detriment of the developing world. The fifth edition is revised, updated and expanded to include new material on topics such as the efforts of the Soviet Union, the UK and France to prevent the outbreak of World War II; the reasons behind the Molotov–Ribbentrop Pact; atomic diplomacy and the role played by Soviet spies in the West; the culture wars and propaganda; Churchill’s efforts to entice the US into the war against Germany; the role of Hollywood in promoting intervention; the US’s insouciance concerning the danger of a Japanese attack; the astonishing success of the Soviet Union in recruiting high level American officials to provide invaluable information on politics, science, engineering and avionics; and more. Incorporating the most recent scholarship, Martin McCauley provides students with an invaluable introduction to a fascinating period that shaped today's world. The book is an important staple for courses on modern global history and international affairs.