Throughout history there has never been a connection like that between Clement Attlee and Winston Churchill, leaders of their respective parties for a total of 35 years. Brought together in the epoch-making circumstances of World War II, they forged a partnership that transcended party lines, before going on to face each other in two of Britain's most important and influential general elections. Based on extensive research and archival material, this book provides a host of new insights. From the bizarre coincidence that they shared a governess, to their explosive wartime clashes over domestic policy and reconstruction; and from Britain's post-war nuclear weapons program, which Attlee kept hidden from Churchill and his own Labor Party, to the private correspondence between the two men in later life, which demonstrates their friendliness despite all the political antagonism, Leo McKinstry tells the intertwined story of these two political titans. This gripping narrative provides a fresh perspective on two of the most compelling leaders of the mid-20th century while also bringing to life this vibrant, traumatic and inspiring era of modern British history.