Wilson’s peace efforts continue. Germany decides to unleash the U-boats. Britain intercepts a telegram. The East African campaign plods along. Britain pushes to the gates of Palestine as the Arab Revolt advances.
Germany’s U-boat campaign pushes the Americans towards war. British gains in Mesopotamia. Germany begins to withdraw to the Hindenburg Line. Mata Hari arrested.
The USA declares war on Germany. Initial British and Canadian success at Arras. Nivelle’s offensive is a disastrous failure. Lenin returns to Russia. The Turks again block Britain at Gaza. The U-boats‘ deadliest month yet.