High Quality Content by WIKIPEDIA articles! Operation Anger (sometimes known as Operation Quick Anger), was a military operation to seize the city of Arnhem in April 1945, during the closing stages of the Second World War. It is occasionally referred to as the Second Battle of Arnhem or the Liberation of Arnhem. The operation was part of the Canadian First Army`s liberation of the Netherlands and was led by the British 49th (West Riding) Division, supported by armour of the 5th Canadian (Armoured) Division, Royal Air Force air strikes and boats of the Royal Navy.