Three times in the 20th century, Canada played a major role in a terrible war. 116,000 Canadians were killed in World War I, World War II, and the Korean War. They are buried overseas, where they fell. But 27,000 Canadians who were killed have no known graves. Their final resting place is marked by a headstone with no name, or it is at the bottom of the sea. In May of 2000, Canada brought an unknown soldier home from a cemetery at Vimy Ridge in France, the site of a First World War battle that forged our country's identity. CBC provided the definitive coverage of that historic event, and here are the most important and most moving moments from the ceremonies.