The Army proper first went into action in the Battle of Normandy and conducted operations at Falaise (e.g. Operation Totalize, Operation Tractable) and helping close the Falaise pocket. After reaching the Seine, the objective of the first phase of Operation Overlord, the Army moved along the coast towards Belgium, with the Canadian 2nd Division entering Dieppe at the beginning of September. The First Army, under acting command of Lieutenant-General Guy Simonds (from 28 September 1944 to 7 November 1944), fought the critical Battle of the Scheldt along with the supporting Operation Pheasant in October and early November, opening Antwerp for Allied shipping.