About 343,000,000 results
World war - Wikipedia
World War I - Wikipedia
World War I: Summary, Causes, Facts & Dates | HISTORY
World War II - Wikipedia
World War I | History, Summary, Causes, Combatants ... - Britannica
World War I | Britannica
World War I facts and information - National Geographic
World War II | Facts, Summary, History, Dates, Combatants,
World War I: Causes and Timeline | HISTORY
World War II: Causes and Timeline | HISTORY