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 ...

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.

Since then, the battle has mostly been in the east of Ukraine ... be times when there have been changes not reflected in the maps.