Why did the whole world go to war? -- Did World War I cause World War II? -- What started World War II? -- How did Hitler take over so many countries so quickly? -- Why did Japan attack its neighbors? -- What happened at Pearl Harbor? -- Who were the leaders of the war? -- What was the longest battle of the war? -- Were there spies working against the Germans? -- Who gained control over the Pacific seas? -- How did the war change life in America? -- Who were the Tuskegee Airmen? -- Why was Anne Frank hiding? -- What ended the deadliest conflict in human history?