World War I was sparked by nationalism and a web of military alliances. Soldiers in Europe fought the first modern was as industrial-age ingenuity sparked terror in the guise of warplanes, flamethrowers and chemical weapons.

Originally released by Media Rich Learning, 2007. Streaming video file encoded with permission for digital streaming by Infobase on May 02, 2015.

Roots Of War (6:41); --The Devastating Conflict (4:48); -- America Joins The Ranks (4:20); -- Supporting The War (4:59); -- American Troops Land Over There (5:00); .