The Longest Day June 6 1944 Author:Cornelius Ryan Until this book, the real story of D-Day had never been told. Whether you like war stories or not, whether you have read them all or none you will never find a better one than this one. As Field Marshall Erwin Rommel said to his aide on April 22, 1944, "For the Allies as well as Germany, it will be the longest day."