The World Wars

World War I casualties - Wikipedia

BBC - History: World Wars in-depth

Military Order of the World Wars - Wikipedia

The World Wars”. Examining the Causes and Consequences

World War II, Great Depression and World War II, 1929-1945, U.S. History Primary Source Timeline, Classroom Materials at the Library of Congress

The U.S. in WWI - Overview - World War I Centennial

The World Wars

World War I, History, Summary, Causes, Combatants, Casualties, Map, & Facts

The World Wars, Usborne Publishing, Intro to First and Second WW1

The World Wars: Season 1 - TV on Google Play

A New History of the Second World War

In Depth Comparison of World War 1 & World War 2