10/19/2026
🚨 **He Used Science to Help Canadian Artillery Destroy Enemy Guns. Then He Took Command of Canada’s Army in the Second World War. But His Own Military Career Ended in Controversy.**
His name was **Andrew George Latta McNaughton**—one of Canada’s most scientifically minded military commanders.
Born in Moosomin, Saskatchewan, in 1887, McNaughton studied electrical engineering at McGill University. But when the First World War began, he joined the Canadian military as an artillery officer.
He would help change how Canadian soldiers fought.
During the First World War, locating enemy artillery was a deadly challenge. German guns could bombard Canadian positions without revealing exactly where they were hidden.
McNaughton applied his scientific training to the problem.
He helped develop and improve methods known as *flash-spotting* and *sound-ranging*. By analysing the flashes from firing guns and measuring the sounds of their explosions, artillery specialists could estimate enemy gun positions more accurately.
This intelligence helped Canadian forces target German artillery and reduce the danger to their own troops.
His scientific approach contributed to the Canadian Corps’ growing effectiveness during battles such as Vimy Ridge in 1917 and the Hundred Days Campaign in 1918.
By the end of the First World War, McNaughton had risen to command the Canadian Corps’ heavy artillery.
But his greatest challenge was still ahead.
When the Second World War began in 1939, McNaughton returned to active military service. He took the 1st Canadian Infantry Division overseas to Britain and eventually became commander of the **First Canadian Army**.
For Canada, this was a major responsibility. The army had expanded enormously from its modest pre-war beginnings, and McNaughton was determined that Canadian soldiers should fight as a distinct national force rather than simply be absorbed into British formations.
His commitment to Canadian military independence was strong—but it also brought him into conflict with other senior commanders and political leaders.
Then came the disastrous Dieppe Raid of August 1942.
Canadian troops suffered devastating casualties during the assault on the German-occupied French port. McNaughton had supported the operation, and its failure intensified criticism of his leadership, alongside other disagreements over command and military planning.
In December 1943, he resigned as commander of the First Canadian Army.
For a man who had helped build Canada’s overseas army, it was a painful end to his field command.
Yet his public service continued. In 1944, McNaughton became Canada’s minister of national defence. After the war, he served as a diplomat and represented Canada in international affairs.
His career also reflected another important part of Canada’s wartime story: scientific research could be just as vital as battlefield courage. McNaughton’s work with the National Research Council helped strengthen the scientific foundations behind Canadian military technology, including research connected to the development of radar.
He died in 1966, leaving behind a complex legacy of innovation, ambition, national pride and controversy.
**Andrew McNaughton was not a flawless commander. But he helped demonstrate that scientific thinking could change the battlefield—and that Canada’s military identity was being forged through both its achievements and its mistakes.**
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