Harry Crerar, born on April 28, 1888, was a distinguished Canadian military officer and diplomat who played a pivotal role in the Second World War. A graduate of the Royal Military College of Canada, he began his military career in 1909 as a lieutenant in the Non-Permanent Active Militia, serving with the 4th Battery, Canadian Field Artillery. His early service included notable contributions during the First World War, where he was recognized for his bravery and leadership, earning a mention in despatches and being appointed a companion of the Distinguished Service Order.
Crerar's military acumen led him to ascend rapidly through the ranks, becoming a full general by 1944. His strategic insights were instrumental during the Second World War, where he initially commanded the 2nd Canadian Infantry Division in England. He was involved in the controversial Dieppe Raid in 1942 and later took command of I Canadian Corps, participating in the Italian campaign before returning to the UK to lead the First Canadian Army.
Under Crerar's leadership, the First Canadian Army made significant contributions to the Allied efforts in North West Europe, particularly during the Battle of Normandy in 1944. His command saw the army engage in critical operations such as Operation Totalize and the Battle of the Falaise Pocket, ultimately clearing the Channel Coast. Crerar's promotion to full general on November 16, 1944, marked a historic moment as he became the first Canadian officer to achieve this rank in the field.
In 1945, Crerar's forces played a crucial role in the liberation of the western Netherlands, showcasing the effectiveness of the First Canadian Army, which included British, Polish, and Czech troops. After the war, he retired from military service in 1946, leaving behind a legacy that would be remembered by historians. J. L. Granatstein, a noted Canadian military historian, remarked on Crerar's profound impact on the Canadian Army, stating that he was the most important Canadian soldier of the war.