Why did the whole world go to war? -- Did World War I cause World War II? -- How did Hitler become so powerful? -- What started World War II? -- How did Hitler take over so many countries so quickly? -- Were any countries able to resist Hitler's invasions? -- Why did Japan attack its neighbors? -- What happened at Pearl Harbor? -- Who were the leaders of the war? -- Where were the fiercest battles fought? -- What was the longest battle of the war? -- Were there spies working against the Nazis? -- Who gained control over the Pacific seas? -- How did the war change life in America? -- Who were the Tuskegee Airmen? -- How did the allies trick the Germans on D-Day? -- Why was Anne Frank hiding? -- What ended the deadliest conflict in human history?