1914: To Arms The first phase of WWI included the efforts of the British Expeditionary Force at Mons and the brilliant German victory at Tannenberg. The second phase saw both sides attempting to outflank their enemies but the conflict was soon characterised by trench warfare.
1915: Death in Foreign Fields 1915 saw small gains at an enormous cost. British cities were bombed, German U-Boats attacked neutral shipping and gas was used at the Battles of Bolimov, Ypres and Loos.
1916: Stalemate The Germans began their assault on the forts at Verdun, the Russians launched the Brusilov Offensive and the British initiated the Battle of the Somme. At sea, the Royal Navy and German High Seas Fleet clashed at Jutland.
1917: The Breaking of Armies Despite Russia's withdrawal from the conflict there were spectacular Allied gains at Vimy Ridge, and the Battle of Messines allowed for the much larger Third Battle of Ypres. The Battle of Cambrai heralded the first time tanks were used.
1918: Germany's Last Gamble The Germans launched new 'Storm Trooper' attacks with devastating results. However, a lack of supplies and the outbreak of "Spanish Influenza" strangled their efforts. Panic in the German High Command led to an Armistice and an end to the war on November 11th, 1918.