We conclude the four-part series on military moves in 1916 in the Great War with Brusilov's Offensive and the Battle of the Somme.

Austria begins an offensive against Italy, Russia gears up a counteroffensive in Galicia, and the British and German Navies have it out in the Skagerrak.

The fighting continued at Verdun as the Russians prepare an offensive of their own to relieve the pressure on France. A German U-boat mistakenly sinks a passenger ferry in the English Channel, triggering another controversy over submarine rules of engagement.

The third year of the war opens with Britain and Germany as the mainstays of their respective alliances. The German Chief of Staff tries a bank shot: cripple Britain by wounding France.