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The Second Battle of Ypres
Poison gas is used for the first time by Germans in an attack on the Canadian sector. -
Gallipoli, Turkey
Allied forces land on Gallipoli, Turkey. -
American Naval forces join the war
The American naval and military attaches in Paris and London draft a plan for mobilizing US shipping to carry an American army to Europe, but their plan is ignored. -
President Wilson gets involved
President Wilson, publicly calls for the German's to stop their submarine policy of sinking all ships in enemy waters without warning. -
British ask Americans for help
Field Marshal Lord Kitchener, the British Secretary of State for War, asks for American military participation in Europe. -
British forces surrender in Turkey
British forces surrender to Turkish forces at Kut in Mesopotamia. -
Americans Declare War on Germany
President Woodrow Wilson delivers war address to Congress at 8:32 pm and asks the House of Representatives to declare war on Germany. -
Germans Withdraw to Hindenburg Line
German forces finish their withdrawal to the Hindenburg Line. -
United States officially declares war
United States comes out of neutrality and declares war on Germany, thus entering the First World War. -
Nivelle Offensive Begins
The Nivelle Offensive begins. -
Canadian Troops take vimy Ridge
Canadian troops take Vimy Ridge and the surrounding area in one of Canada's finest battles of the war. -
Nivelle Offensive fails
The Nivelle Offensive, which includes the Second Battle of Aisne and the Third Battle of Champagne ends in French Failure. -
Chemin des Dames Offensive fails
Chemin des Dames Offensive ends in disastrous failure for the French having advanced only 500 yards at the cost of 250,000 casualties. A month long series of mutinies break out amongst the French army. -
Germany launches second Spring Offensive
Germany launches second Spring offensive, the Battle of the Lys, in the British sector of Armentieres. -
Western Front
Foch appointed Commander-in-Chief of Allied forces on Western Front.
