The Battle of Okinawa, which lasted from April 1, 1945 through June 21, 1945, was the last major battle of World War II. Fought on the island of Okinawa, it was part of an offensive leading up to the invasion of the main islands of Japan which was aborted when the Japanese surrendered in August, 1945. Counting civilians, more than 200,000 Japanese died during the Battle of Okinawa. About 15,900 U.S. soldiers were killed.
Very little went as planned during the landing at Omaha. However, small penetrations were eventually achieved by groups of survivors making improvised assaults, scaling the bluffs between the most heavily defended points. By the end of the day, two small isolated footholds had been won.
Alan Turing played a pivotal role in cracking intercepted coded messages that enabled the Allies to defeat the Nazis in many crucial engagements, including the Battle of the Atlantic; it has been estimated that this work shortened the war in Europe by more than two years and saved over fourteen million lives.