The war to end all wars had an effect on military and political power in Europe that continues to be felt today. This 26-part CBS News documentary series, which aired in 1964 and 1965, traces the history of World War I from the centuries-old rivalries that precipitated it to the continent-wide conflict and America's eventual involvement. See how tanks and airplanes changed the face of warfare, and how the vengeful peace agreement planted the seeds for World War II. Narrated by Robert Ryan. 16 hrs. total on four discs. Standard; Soundtrack: English.