April 10—Germans cross the River Lys at several points between Armentières and Estaires; British forced back north and south of Armentières; French repulse Germans in the Hangard region; first American troops reach the British front.
April 11—Germans hurl troops at British front from La Bassée to the Ypres-Comines Canal, and force the British to give ground at some points, notably at Estaires and Steenwerck.
April 12—Germans launch heavy attacks against the French in the Hangard-en-Santerre sector, penetrate Hangard, but later lose half of the village to the French; Americans help to repel an attack in the Apremont Forest; British forced back west and northwest of Armentières to Neuve Eglise; Merville lost.
April 13—French advance northwest of Orvilles-Sorel and repulse attack near Noyon; British regain Neuve Eglise, but beat off German attacks southeast of Bailleul; Americans repulse two attacks in force in the Toul sector, winning the first all-day battle in which they have been engaged.
April 14—British hold Neuve Eglise against repeated German assaults; Germans attack near Bailleul and Merris; Americans repulse attacks north of St. Mihiel; bombardment of Paris by long-range gun continues.
April 15—Germans take Neuve Eglise, and hurl huge forces toward Bailleul and Wulverghem; British straighten out their salient around Wytschaete; definite announcement made of the appointment of General Foch as Commander in Chief of the allied armies in France, with enlarged powers.
April 16—Germans take Wytschaete and Spanbroekmolen, after forcing the British out of Bailleul; sixteen killed, forty-five wounded in long-range bombardment of Paris.
April 17—British re-enter Wytschaete and Meteren, but are forced out; Germans occupy Poelcappelle, Langemarck, and Passchendaele.
CAMPAIGN IN ASIA MINOR
March 21—British advance in Palestine, taking Beit Rima, Kefrut, and Elowsallabeh.