Operation Blockbuster was the completion of the larger Operation Veritable by the First Canadian Army, reinforced by the XXX Corps from the British Second Army from late February to early March, 1945. Veritable had been slower and more costly than expected and the Canadian commander, General Harry Crerar, had decided on a fresh start for the operation. Three British and Canadian divisions advanced south-eastwards, capturing unprepared German positions in the , before advancing on Xanten. They linked up with the Ninth US Army at Berendonk, near Geldern on 3 March.
Attached to the 10th Canadian Infantry Brigade, 4th Canadian (Armoured) Division, the Canadian infantry and armoured regiments to earn battle honours for actions during Operation Blockbuster, emblazoned on their regimental colours as The Hochwald, include:
The Battle of the Hochwald Gap is the topic of episode 5 of season 1 of the documentary series Greatest Tank Battles, which first aired in 2010. Veterans on both sides give testimonies on the violence of the campaign. The Canadians in particular speak of the tenacity of German soldiers in the Rhineland, while former German soldiers give testimonies on their own experiences with the Canadians.