In late 1914, General Erich Von Falkenhayn, Chief of the General Staff Oberste Heeresleitung (OHL) of the German army since 14 September, had reinforced the 4th Army and attacked westwards, parallel to the North Sea coast, culminating in the Battle of the Yser (16–31 October 1914) and the First Battle of Ypres (19 October – 22 November), when open warfare in the west ended.
The Battle of Pilckem Ridge (31 July – 2 August 1917) was the opening attack of the Third Battle of Ypres in the First World War.The British Fifth Army, supported by the Second Army on the southern flank and the French 1 re Armée (First Army) on the northern flank, attacked the German 4th Army, which defended the Western Front from Lille northwards to the Ypres Salient in Belgium and on to ...
The Battle of the Marne was the second great battle on the Western Front, after the Battle of the Frontiers, and one of the most important events of the war. While the German invasion failed decisively to defeat the Entente in France, the German army occupied a good portion of northern France as well as most of Belgium and it was the failure of the French Plan 17 that caused that situation. 
The Battle of Verdun (French: Bataille de Verdun [bataj də vɛʁdœ̃]; German: Schlacht um Verdun [ʃlaxt ʔʊm ˈvɛɐ̯dœ̃]) was fought from 21 February to 18 December 1916 on the Western Front in France. The battle was the longest of the First World War and took place on the hills north of Verdun-sur-Meuse.
During the battle, the divisions of I Anzac Corps advanced north-west along Pozières ridge, towards Mouquet Farm, with British divisions supporting on the left. The approaches to the farm were watched by German artillery observers, who directed artillery-fire on the attackers from three sides of the salient that had developed in the lines. 
The Battle of Canal du Nord was part of the Hundred Days Offensive of the First World War by the Allies against German positions on the Western Front. The battle took place in the Nord-Pas-de-Calais region of France , along an incomplete portion of the Canal du Nord and on the outskirts of Cambrai between 27 September and 1 October 1918.
The BEF miners eventually completed a line of deep mines under Messines Ridge that were charged with 454 t (447 long tons) of ammonal and gun cotton. Two mines were laid at Hill 60 on the northern flank, one at St Eloi, three at Hollandscheschur Farm, two at Petit Bois, single mines at Maedelstede Farm, Peckham House and Spanbroekmolen, four at Kruisstraat, one at Ontario Farm and two each at ...