Evolution of the Canadian Corps

Lieutenant-General Sir Currie

Lieutenant-General Sir Arthur Currie, 1917.

On June 9, 1917, Lieutenant-General Sir Arthur Currie, a Canadian by birth, was at 41, the youngest officer to achieve lieutenant-general's rank in the British armies.

Library and Archives Canada. Department of National Defence Collection 1964-114 PA-001370


One Division

On August 6, 1914, a grateful Empire sent word requesting that Canada's offer of soldiers be "dispatched as soon as possible." The next day, the Canadian Army Council advised that a "suitable composition" for Canada's overseas expeditionary force would be "one division."

First Contingent, August-September 1914

Canada's first contingent comprised four infantry brigades mobilized from militia districts across the country.

Brigades of the 1st Division

  • 1st (Provisional) Infantry Brigade,
    • containing the 1st, 2nd, 3rd and 4th Battalions, was mustered in Ontario.
  • 2nd Infantry Brigade
    • containing the 5th, 6th, 7th, 8th Battalions, hailed from western Canada.
  • 3rd Infantry Brigade
    • brought together volunteers from Montreal and the Maritimes in its 14th Battalion. The remaining three battalions of the 3rd Brigade were formed from Canadian Highland units.
  • 4th Infantry Brigade
    • originally planned as a future 2nd Division, but quickly absorbed by the 1st Division, gathered recruits from the Prairies to fill the 9th, 10th and 11th Battalions. The 12th Battalion came from the Maritimes.

First Contingent Arrives in Britain, October 1914

On October 14, 1914, a total of 31,200 men of the Canadian Expeditionary Force arrived in Britain. Under the command of Lieutenant-General E.A.H. Alderson, Canada's first overseas division brought together infantry, supporting arms and specialist organizations, including artillery batteries of 18-pounder guns, militia engineering field companies, signal, medical and veterinary units, as well as the Army Service Corps tasked with delivering vital food, ammunition and fuel supplies.

First Units to See Service in France, November 1914

On November 8, No. 2 Stationary Hospital became the first Canadian unit to see service in France. A fortnight later, a privately raised Montreal infantry battalion, the Princess Patricia's Light Infantry (PPCLI), arrived on the western front, but as part of the British 80th Brigade. The PPCLI would not return to the Canadian fold for nearly a year. It was to lose 75 percent of its effective fighting strength during a gallant defensive stand during the battles at Ypres, April-May 1915.

The Western Front

The western front, which the Canadians joined as part of the British 1st and later 2nd Armies, consisted of a complex, hand-gouged system of trenches, wooden planking, barbed wire and mud, which snaked from the English Channel to the Swiss border. Between 1915 and 1917, this line changed little more than 16 kilometres in either direction. Offensive victories were calculated in metres.

1st and 2nd Divisions Arrive in France

In February 1915, the 1st Division arrived in France with 610 officers and 17,263 other ranks. The 2nd Division followed in September of the same year under the command of Major-General R.E.W. Turner.

Brigades of the 2nd Division

  • 4th Brigade,
    • which was newly formed, had its 18th, 19th, 20th and 21st Battalions mobilized from Ontario.
  • 5th Brigade
    • saw its Battalions (22nd, 24th, 25th and 26th) recruited from Quebec and the Maritimes. The 22nd Battalion was comprised entirely of French-Canadian soldiers.
  • 6th Brigade
    • made up of the 27th, 28th, 29th and 31st Battalions consisted of western recruits. The 2nd Divisional Cavalry Squadron was formed at the end of March 1915. A lack of guns delayed the completion of the 2nd Divisional Artillery.

Recruitment poster for French Canada, ca. 1914-1918.

This poster is indicative of numerous others that were employed to bolster support in both English and French Canada. The title declares "We are defending the precious joys of liberty," by fighting in the First World War. To further rally recruits for the Canadian effort, the poster continues, "the drum is struck, the trumpet sounds/Who will wait behind... No one! It is a people that is defending itself. Forward!"

Library and Archives Canada First World War Collection 1983-28-782 Unknown artist Gazette Printing Company Ltd., Montreal, Quebec C-095381

Creation of the Canadian Corps, September 1915

On September 13, 1915, Lieutenant-General Alderson opened the Canadian Corps Headquarters. The new formation comprised the 1st Division (Major-General A.W. Currie), 2nd Division (Major-General R.E.W. Turner) and Corp Troops under the command of Major-General M.S. Mercer. Mercer's Corp Troops included the Canadian Cavalry and the Royal Canadian Horse Artillery Brigades, as well as a group of infantry and dismounted cavalry units, which would later form the 7th and 8th Brigades of the future 3rd Division. By the beginning of November 1915, the Canadian Corps comprised 1,354 officers and 36,522 other ranks.

3rd Division

By the end of December 1915, Major-General Mercer, a Canadian by birth, commanded the Corps' 3rd Division. He held this command until his death during the Battle of Mount Sorrel, June 1916. By the end of 1916, all staff appointments in this Division, but for three, were held by Canadians.

Brigades of the 3rd Division

  • 7th Brigade
    • consisted of the Princess Patricia's Light Infantry (the only unit with active field experience), the Royal Canadian Regiment (Canada's only permanent force battalion newly arrived in France after garrison duty in Bermuda), the 42nd Battalion (Montreal) and the 49th Battalion (Edmonton).
  • 8th Brigade
    • was made up of the Canadian Mounted Rifle Battalion's 1st, 2nd, 4th and 5th Battalions.
  • 9th Brigade
    • which joined the Division in February 1916, comprised the 43rd (Winnipeg), 52nd (Port Arthur), 58th (Niagara area) and the 60th (Montreal) Battalions. By the end of January 1916, there were 50,000 Canadian troops in the field, serving in the Canadian Corps, as part of the British 2nd Army.

4th Division

In April 1916, the 4th Division, under the command of Major-General David Watson, was created from units already overseas or soon to arrive. Like the 2nd and 3rd Divisions (the 3rd now commanded by Major-General L.J. Lipsett), the 4th Division did not at first have its own artillery. The 4th Divisional Artillery was not formed until June 1917.

Brigades of the 4th Division

  • 10th Brigade
    • consisted of the 44th (Winnipeg), 46th (South Saskatchewan), 47th (New Westminster, Vancouver and Victoria) and 50th (Calgary) Battalions.
  • 11th Brigade
    • made up of the 54th (Kootenay, British Columbia), 75th (Toronto, Hamilton and London), 87th (Montreal) and 102nd (North British Columbia) Battalions.
  • 12th Brigade
    • comprised the 38th (Ottawa district), 72nd (British Columbia), 73rd (Montreal) and 78th (Winnipeg) Battalions. At the end of June 1916, the number of Corps casualties had mounted to 32,000-nearly equalling the total number of recruits who sailed to England with the first contingent in October 1914.

The Battle of Vimy Ridge, April 9-12, 1917

A year later, during the Battle of Vimy Ridge, April 9-12, 1917, Canadian soldiers in the Corps totalled 97,184 men. For the first time, the Corps' 1st Division (Major-General Arthur Currie), 2nd Division (Major-General Harry E. Burstall), 3rd Division (Major-General Louis. J. Lipsett) and 4th Division (Major-General David Watson), under Commander Lieutenant-General the Honourable Sir Julian H.G. Byng, attacked as a single formation.

Lieutenant-General Sir Arthur Currie Commands the Canadian Corps, June 1917

On June 9, 1917, Lieutenant-General Sir Arthur Currie, a Canadian by birth, and at 41, the "youngest officer to achieve Lieutenant-General's rank in the British armies," assumed command of the Canadian Corps. Lieutenant-General Sir Julian Byng took over the British 3rd Army.

Canada's Finest Formation, November 11, 1918

In the following year, at 6:30 a.m. on November 11, 1918, a message reached the Canadian Corps Headquarters announcing that hostilities would cease five hours later at 11:00 a.m. At the moment of the armistice, Lieutenant-General Currie commanded 110,000 Canadian troops. Historian Jack Granatstein writes: "Arthur Currie was the best soldier Canada ever produced. The Canadian Corps under his command became the finest formation this nation has ever put in the field."


Granatstein, J.L. Canada's Army: Waging War and Keeping the Peace. Toronto, Buffalo, London: University of Toronto Press, 2002.

Nicholson, Colonel G.W.L. Canadian Expeditionary Force 1914-1919: The Official History of the Canadian Army in the First World War. Ottawa: Queen's Printer and Controller of Stationery, 1962.

Morton, Desmond and J.L. Granatstein. Marching to Armageddon: Canadians and the Great War 1914-1919. Toronto: Lester & Orpen Dennys, Ltd., 1989.

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