I Corps (Sierra)

I Corps
Active	1867–2005
Country	Kingdom of Sierra
Branch	Sierran Royal Army
Size	Corps
Engagements	War of Contingency; Great War I; Great War II; Syrian War

The I Corps of the Sierran Royal Army was a Sierran corps level command that participated in the War of Contingency, the Sierran Civil War, Great War I, and Great War II. During the Cold War the I Sierran Corps was a major component of the CAS–NATO Northern Army Group, headquartered in Duluth, Superior. In 2005 the formation was dissolved as the K.S. land forces were downsized and restructured.

It was created with its headquarters in Porciúncula, with the original corps catchment area included the provinces of Gold Coast, Orange, and Inland Empire.

War of Contingency

I Corps
- 1st Division
  - 1st Infantry Brigade
    - 1st Infantry Regiment "Crown Prince"
    - 2nd Infantry Regiment "King Louis I"
  - 2nd Infantry Brigade
    - 3rd Infantry Regiment "King Charles I"
    - 4th Infantry Regiment "Prince of Colorado"
  - 1st Field Artillery Regiment "Greater Porciúncula"
  - 1st Company, 1st Engineer Regiment
- 2nd Division
  - 3rd Infantry Brigade
    - 5th Infantry Regiment "Prince of Mohave"
    - 6th Infantry Regiment "Prince of Sand Diego"
  - 4th Infantry Brigade
    - 7th Infantry Regiment "Duke of Napa"
    - 8th Infantry Regiment "Lord of Farallon"
  - 2nd Field Artillery Regiment
  - 2nd Company, 1st Engineer Regiment
- Corps troops
  - 1st Foot Artillery Battalion
  - 1st Pioneer Detachment

I Corps
- 1st Division
  - 1st Infantry Brigade
    - 1st Infantry Regiment "Crown Prince"
    - 2nd Infantry Regiment "King Louis I"
  - 2nd Infantry Brigade
    - 3rd Infantry Regiment "King Charles I"
    - 4th Infantry Regiment "Prince of Colorado"
  - 1st Cavalry Brigade
    - 1st Cavalry Regiment
    - 2nd Cavalry Regiment
  - 1st Field Artillery Regiment "Greater Porciúncula"
  - 1st Company, 1st Engineer Regiment
- 2nd Division
  - 3rd Infantry Brigade
    - 5th Infantry Regiment "Prince of Mohave"
    - 6th Infantry Regiment "Prince of Sand Diego"
  - 4th Infantry Brigade
    - 7th Infantry Regiment "Duke of Napa"
    - 8th Infantry Regiment "Lord of Farallon"
  - 2nd Cavalry Brigade
    - 3rd Cavalry Regiment
    - 4th Cavalry Regiment
  - 2nd Field Artillery Regiment
  - 2nd Company, 1st Engineer Regiment
- 20th Division
  - 39th Infantry Brigade
    - 77th Infantry Regiment
    - 78th Infantry Regiment
  - 40th Infantry Brigade
    - 79th Infantry Regiment
    - 80th Infantry Regiment
  - 20th Field Artillery Regiment
- 30th Division
  - 57th Infantry Brigade
    - 113th Infantry Regiment
    - 114th Infantry Regiment
  - 58th Infantry Brigade
    - 115th Infantry Regiment
    - 116th Infantry Regiment
  - 30th Field Artillery Regiment
- Corps troops