The Battle of Mont Sorrel (Battle of Mount Sorrel, Battle of Hill 62) was a local operation in World War I by three divisions of the German 4th Army and three divisions of the British Second Army in the Ypres Salient, near Ypres in Belgium, from 2 to 13 June 1916. To divert British resources from the build-up being observed on the Somme, the XIII (Royal Württemberg) Corps and the 117th Infantry Division attacked an arc of high ground defended by the Canadian Corps in Flanders. The German forces captured the heights at Mount Sorrel and Tor Top, before entrenching on the far slope of the ridge. Following a number of attacks and counterattacks, two divisions of the Canadian Corps, supported by the 20th Light Division and Second Army siege and howitzer battery groups, recaptured the majority of their former positions. Located in the Ypres Salient, east of Ypres, Belgium and from Hill 60, the Battle of Mount Sorrel took place along a ridge between Hooge and Zwarteleen. The crest of Mount Sorrel, nearby Tor Top (Hill 62) and Hill 61 rose approximately higher than the low ground at Zillebeke, affording the occupying force excellent observation over the salient, the town of Ypres and approach routes. The peaks were the only portion of the crest of the Ypres ridge which remained in Allied hands. In northern France, men and resources were being marshalled in preparation for the large British–French Somme Offensive. The build-up in the Somme did not go unnoticed by the Oberste Heeresleitung, the German Supreme Army Command. The German 2nd Army, which was holding the sector north of the Somme, had observed preparations for an offensive since the end of February 1916. Short of resources due to the Battle of Verdun, the Germans could only mount local operations to divert British resources from the Somme. On 28 May 1916, in an abrupt change of command, Lieutenant-General Edwin Alderson was appointed to the largely ceremonial post of Inspector General of Canadian Forces in England and was succeeded by Lieutenant-General Julian Byng as commander of the Canadian Corps.