Here is a list of notable Canadian Army Corps from 1899 to 2024, including some modern corps with links to their online associations and resources:
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1. Royal Canadian Army Medical Corps (RCAMC)
Active: 1904–present (now part of the Royal Canadian Medical Service)
Purpose: Provides medical services to the Canadian Army.
Online Resources:
- [RCAMC History & Heritage](https://www.canada.ca/en/services/defence/caf/military-units/medical.html)
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2. Canadian Engineers (Later, Royal Canadian Engineers, now Royal Canadian Engineers Corps)
Active: 1903–present
Purpose: Military engineering services.
Online Resources:
- [Canadian Military Engineers Association](https://cmea-agmc.ca)
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3. Royal Canadian Regiment (RCR)
Active: 1883–present
Purpose: Infantry regiment of the Canadian Army.
Online Resources:
- [The Royal Canadian Regiment Association](https://www.thercr.ca)
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4. Royal Canadian Artillery (RCA)
Active: 1883–present
Purpose: Artillery unit of the Canadian Army.
Online Resources:
- [Royal Canadian Artillery Association](https://www.rcakitshop.net/)
- [RCA History](https://rca-arc.org/our-history/)
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5. Royal Canadian Armoured Corps (RCAC)
Active: 1940–present
Purpose: Armoured units and cavalry.
Online Resources:
- [Royal Canadian Armoured Corps Association](https://rcaca.org)
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6. Royal Canadian Infantry Corps (RCIC)
Active: 1942–present
Purpose: Infantry branch of the Canadian Army.
Online Resources:
- [Canadian Army - Infantry Corps](https://www.canada.ca/en/army/corporate/organization/infantry.html)
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7. Royal Canadian Electrical and Mechanical Engineers (RCEME)
Active: 1944–present
Purpose: Responsible for vehicle and equipment maintenance.
Online Resources:
- [RCEME Guild](https://rcemeguild.ca)
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8. Canadian Expeditionary Force (CEF)
Active: 1914–1920
Purpose: Raised for overseas service during World War I.
Online Resources:
- [Library and Archives Canada](https://www.bac-lac.gc.ca/eng/discover/military-heritage/first-world-war/Pages/introduction.aspx)
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9. Canadian Cavalry Brigade
Active: 1914–1918 (WWI)
Purpose: Cavalry formation during World War I.
Online Resources:
- [The Great War - Canadian Cavalry Brigade](http://www.canadiangreatwarproject.com)
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10. Royal Canadian Corps of Signals (RCCS)
Active: 1903–present (Now part of the Communication and Electronics Branch)
Purpose: Communications, signals, and information systems.
Online Resources:
- [Signals Association](https://www.rcsigs.ca)
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11. Canadian Provost Corps (C Pro C)
Active: 1940–1968 (Merged into Canadian Forces Military Police)
Purpose: Military policing and security.
Online Resources:
- [Canadian Provost Corps](http://mpmuseum.org/securcanprovost.html)
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12. Royal Canadian Dental Corps (RCDC)
Active: 1915–present (Now part of the Royal Canadian Medical Service)
Purpose: Dental services to the Canadian Army.
Online Resources:
- [RCDC History](https://www.canada.ca/en/services/defence/caf/military-units/dental.html)
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13. Canadian Corps of Guides
Active: 1903–1929
Purpose: Intelligence-gathering and reconnaissance.
Online Resources:
- [History of Canadian Intelligence](https://www.canada.ca/en/army/services/lineages/army-intelligence/history.html)
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14. Canadian Special Operations Forces Command (CANSOFCOM)
Active: 2006–present
Purpose: Oversees special forces operations.
Online Resources:
- [Canadian Special Operations Forces Command](https://www.canada.ca/en/special-operations-forces-command.html)
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15. Canadian Corps of Signals (now Royal Canadian Corps of Signals)
Active: 1903–present
Purpose: Provides communications and electronic warfare capabilities.
Online Resources:
- [Royal Canadian Corps of Signals - History](https://www.rcsigs.ca/)
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16. Canadian Women’s Army Corps (CWAC)
Active: 1941–1946
Purpose: Women’s service branch during World War II.
Online Resources:
- [Canadian Women's Army Corps](https://www.warmuseum.ca/cwm/exhibitions/army/engage-en.html)
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17. Canadian Intelligence Corps (C Int C)
Active: 1942–present
Purpose: Provides intelligence services.
Online Resources:
- [Canadian Intelligence Corps](https://www.canada.ca/en/army/services/lineages/intelligence.html)
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18. Canadian Forces Postal Corps (CFPC)
Active: 1911–1968
Purpose: Provided postal services during wartime.
Online Resources:
- [Canadian Postal Corps - Canadian Forces Museum of Communication](http://www.saskatoon.ca)
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19. Royal Canadian Ordnance Corps (RCOC)
Active: 1903–1968 (Merged into the Canadian Logistics Branch)
Purpose: Logistics and supply services.
Online Resources:
- [RCOC Historical Information](https://servicepub.com)
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20. Canadian Military Engineers (CME)
Active: 1903–present
Purpose: Provides combat engineering and civil engineering services.
Online Resources:
- [Canadian Military Engineers](https://cmea-agmc.ca)
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This list covers the significant corps over time and the shifts in their structure. Many corps that have been disbanded or merged are commemorated through veterans' organizations and military history resources, as noted in the links above.