Operation Spring was launched in July 1944 as part of the broader Allied campaign in Normandy. The First Canadian Army was tasked with weakening German defenses in the vicinity of Caen, which was strategically important for the advancement of Allied forces. The operation involved multiple assaults on well-fortified German positions, aiming to displace enemy troops and secure vital terrain. On July 25, Canadian forces, particularly the 2nd and 3rd Canadian Infantry Divisions, faced fierce resistance as they engaged in a gruesome battle for control of the area. Canadian infantry and armored units confronted German troops equipped with heavy artillery and defences, which resulted in intense close-quarter combat and significant casualties on both sides.

The operation began early in the morning, with Canadian forces advancing under the cover of artillery bombardments aimed at German locations. Despite the heavy barrages, the German defenders remained resilient, and as the day progressed, the fighting grew increasingly brutal. The Canadians made initial advancements but were met with counterattacks that halted their momentum. By the end of the day, the First Canadian Army had suffered extensive losses, with approximately 6,000 casualties reported, including dead, wounded, and missing.

In the aftermath of Operation Spring, the challenges faced highlighted the difficulties of mountain engagements where terrain and fortified positions provided significant advantages to defenders. The heavy losses incurred prompted a re-evaluation of tactics and forced Canadian commanders to consider alternative strategies for future operations. Ultimately, Operation Spring's heavy toll underscored the brutal nature of the campaign in Northern France and the sacrifices made by Allied forces as they strove for victory.