Operation Tractable was the final offensive conducted by Canadian and Polish Army troops, supported by one brigade of British tanks, as part of the Battle of Normandy. The goal of this operation was to capture the strategically important French town of Falaise, and following that, the smaller towns of Trun and Chambois. This operation was undertaken by the Polish 1st Armoured Division and the Canadian 1st Army against the Wehrmacht′s Army Group B, and it was a part of the largest encirclement on the German Western Front during the Second World War.