Which event marked the official beginning of World War II? The bombing of Hiroshima The invasion of Poland The Battle of Stalingrad The Treaty of Versailles None What was the codename for the Allied invasion of Normandy on June 6, 1944? Operation Barbarossa Operation Torch Operation Market Garden Operation Overlord None Which country experienced the devastating "Blitz" bombing campaign by Nazi Germany during World War II, often targeting its cities? United Kingdom Italy The United States Japan None What was the significance of the Battle of Midway in 1942? It marked the end of World War II It was the first use of atomic weapons It was a decisive victory for the United States in the Pacific It led to the creation of the United Nations None What was the code name for the project that developed the atomic bomb during World War II? Project Phoenix Project Manhattan Project Olympus Project Hercules None Time's up