Breaking down critical moments before, during, and after World War II, this book engages upper-elementary and middle-grade readers on a historical journey with 12 easy-to-read chapters about the United States' involvement in the Second World War. Students learn how the war began and what lead to the United States joining the Allies to defeat the Axis Powers. From major battles, such as the Pearl Harbor attack, Battle of Midway, and D-Day, to key leaders like Adolf Hitler and Franklin D. Roosevelt, students will gain an understanding of this important part of US and world history.