A woman inherits a map of a World War I battlefield in France from her grandfather, an engineer under General Pershing. The map is of St. Mihiel, a little-known but key battle in which U.S. forces ...

Pinpoint key locations along the Western Front, watch the general movements of both sides and view the battles of Ypres, Verdun and the Somme in more detail.

The Battle of the Somme was one of the most significant ... 1916. This interactive map shows the victories, defeats and painful stalemate, and how the lessons learned paved the way for victory ...