The Canadian Active Service Force
on 3 September 1939
Corps and Army Troops: (Artillery Brigades retitled Regiments from 21 December 1939)
The Three Rivers Regiment (Tank) - Associated with 1st Canadian Division
The Ontario Regiment (Tank) - Associated with 2nd Canadian Division
The Royal Canadian Dragoons - Permanent Force on active service
Lord Strathcona's Horse - Permanent Force on active service
The Perth Regiment M-G
The Westminster Regiment M-G
No. 1 Infantry Base Depot CASF (The Lorne Scots)
No. 1 General Base Depot CASF (The Sherbrooke Regiment)
1st Army Field Brigade, RCA (27th, 51st, 57th, 90th Field Batteries)
Disbanded 1 October 1939 - Batteries to 1st Anti-Tank Regiment, RCA
2nd Army Field Brigade, RCA 18th, 20th, 23rd, 108th Field Batteries)
Disbanded 1 October 1939 - Batteries to 2nd Anti-Tank Regiment, RCA
3rd Army Field Brigade, RCA (9th, 15th, 29th, 40th Field Batteries)
Retitled 11th Army Field Regiment, RCA - 12 February 1940
4th Army Field Brigade, RCA (61st, 71st, 107th, 113th Field Batteries)
Retitled 8th Army Field Regiment, RCA - 12 February 1940
5th Army Field Brigade, RCA 12th, 45th, 97th, 100th Field Batteries)
Retitled 21st Army Field Regiment, RCA - 1 June 1940
(7th Army Field 15/8/40 and 7th Medium 2/11/43)
1st Medium Brigade, RCA (3rd (PF), 2nd, 7th, 23rd Medium Batteries)
2nd Medium Brigade, RCA (1st, 8th, 11th, 57th Medium Batteries)
Retitled 2nd Heavy AA Regiment, RCA - 24 May 1941
1st Survey Regiment, RCA (1st (P), 2nd (Q) Survey Batteries)
1st (Yorkton) Light Anti-Aircraft Battery, RCA
4th Anti-Aircraft Battery, RCA (PF)
14th Anti-Aircraft Battery, RCA - To Coast Defence
1st Workshop and Park Company, RCE
12th, 13th, 14th Field Companies, RCE
1st Corps Field Park Company, RCE
1st Corps Field Survey Company, RCE
5th, 9th Army Troops Company, RCE
1st Quarrying Company, RCE
1st, 2nd Road Construction Companies, RCE
1st Railway Operating Company, RCE
2nd Railway Operating Company, RCE (Formation Delayed)
1st Railway Construction Company, RCE (Never activated. Later disbanded.)
2nd Railway Construction Company, RCE
1st Railway Workshop Company, RCE
1st Boring Section, RCE
No. 1 Engineer Base Workshops, RCE (Never activated. Later disbanded.)
No. 1 Engineer Store Base Depot, RCE (Never activated. Later disbanded.)
Field Formations:
1st Canadian Infantry Division
1st Canadian Cavalry Regiment (1st Hussars)
1st Field Brigade, RCA (A,B,C Batteries, RCHA (PF), 54th Field Battery)
2nd Field Brigade, RCA (7th, 8th, 10th, 35th Field Batteries)
3rd Field Brigade, RCA (19th, 77th, 92nd, 109th Field Batteries)
1st Anti-Tank Regiment, RCA - Received Btys of 1st Army Field Bde on 1 October 1939
1st, 3rd, 4th Field Companies, RCE
2nd Field Park Company, RCE
1st Canadian Infantry Brigade
The Royal Canadian Regiment - Permanent Force
The Hastings and Prince Edward Regiment
48th Highlanders of Canada
The Toronto Scottish Regiment M-G
2nd Canadian Infantry Brigade
Princess Patricia's Canadian Light Infantry - Permanent Force
The Seaforth Highlanders of Canada
The Edmonton Regiment
The Saskatoon Light Infantry M-G
3rd Canadian Infantry Brigade
Royal 22e Régiment - Permanent Force
The Carleton and York Regiment
The West Nova Scotia Regiment
The Royal Montreal Regiment M-G
2nd Canadian Infantry Division
The Fort Garry Horse
4th Field Brigade, RCA (2nd, 14th, 26th, 53rd Field Batteries)
5th Field Brigade, RCA (5th, 73rd, 28th, 89th Field Batteries)
6th Field Brigade, RCA (13th, 21st, 91st, 111th Field Batteries)
2nd Anti-Tank Regiment, RCA - Received Btys of 2nd Army Field Bde on 1 October 1939
2nd, 7th, 11th (Lambton) Field Companies, RCE
1st (Lambton) Field Park Company, RCE
4th Canadian Infantry Brigade
The Royal Regiment of Canada
The Royal Hamilton Light Infantry (Wentworth Regiment)
The Essex Scottish
The Cameron Highlanders of Ottawa M-G
5th Canadian Infantry Brigade
1st Battalion, The Black Watch of Canada
Le Régiment de Maisonneuve
Les Fusiliers Mont-Royal
Le Régiment de la Chaudière M-G
6th Canadian Infantry Brigade
The Calgary Highlanders
The Queen's Own Cameron Highlanders of Canada
The South Saskatchewan Regiment
The Winnipeg Grenadiers M-G