# I Corps (Ottoman Empire)

The I Corps of the Ottoman Empire (Turkish: 1 nci Kolordu or Birinci Kolordu) was one of the corps of the Ottoman Army consisting of ethnic Albanians. It was formed in the early 20th century during Ottoman military reforms.

## Formation
### Order of Battle, 1911

With further reorganization of the Ottoman Army, to include the creation of corps-level headquarters, by 1911 the I Corps was headquartered in Harbiye. Before the First Balkan War in 1911, the corps was structured as such:
* I Corps, Harbiye, Constantinople (Ferik Zeki Pasha)
** 1st Infantry Division, Harbiye, Constantinople
*** 1st Infantry Regiment, Harbiye, Constantinople
*** 2nd Infantry Regiment, Bakırköy, Constantinople
*** 3rd Infantry Regiment, İşkodra
*** 1st Rifle Battalion, Taksim, Constantinople
*** 1st Field Artillery Regiment, Taksim, Constantinople
*** 1st Division Band, Harbiye, Constantinople
** 2nd Infantry Division, Selimiye, Constantinople (Mirliva Prens Aziz Pasha)
*** 4th Infantry Regiment, İşkodra
*** 5th Infantry Regiment, Selimiye, Constantinople
*** 6th Infantry Regiment, Selimiye, Constantinople
*** 2nd Rifle Battalion, Selimiye, Constantinople
*** 2nd Field Artillery Regiment, Selimiye, Constantinople
*** 2nd Division Band, Selimiye, Constantinople
** 3rd Infantry Division, Pangaltı, Constantinople (Mirliva Osman Pasha)
*** 7th Infantry Regiment, Taşkışla, Constantinople
*** 8th Infantry Regiment, Taşkışla, Constantinople
*** 9th Infantry Regiment, Kağıthane, Constantinople
*** 3rd Rifle Battalion, Tophane, Constantinople
*** 3rd Field Artillery Regiment, Rami Kışlası, Constantinople
*** 3rd Division Band, Taşkışla, Constantinople
* Units of I Corps
* 1st Rifle Regiment, Yıldız, Constantinople
* 1st Cavalry Brigade, Davutpaşa, Constantinople
** 1st Cavalry Regiment, Yıldız, Constantinople
** 2nd Cavalry Regiment, Davutpaşa, Constantinople
* 2nd Cavalry Brigade, Davutpaşa, Constantinople
** 3rd Cavalry Regiment, Davutpaşa, Constantinople
** 4th Cavalry Regiment, Selimiye, Constantinople
* 1st Horse Artillery Battalion, Davutpaşa, Constantinople
* 1st Mountain Artillery Battalion, Münzevî Kışlası, Constantinople
* 1st Field Howitzer Battalion, Gümüşsuyu, Constantinople
* 1st Engineer Battalion, İplikhane, Constantinople
* 1st Telegraph Battalion, Ertuğrul Kışlası, Constantinople
* 1st Medical Battalion, Ahırkapı, Constantinople
* 1st Railroad Battalion, Ahırkapı, Constantinople
* 2nd Railroad Battalion, Ahırkapı, Constantinople
* War Academy, Harbiye, Constantinople
** Cavalry Squadron, Harbiye, Constantinople
** Infantry Company, Harbiye, Constantinople
** Provisional Companies x 2, Harbiye, Constantinople
** Machine-gun Company, Harbiye, Constantinople
* Bosporus Fortified Area Command, Bosporus, Constantinople
** 1st Heavy Artillery Regiment, Bosporus, Constantinople
** 2nd Heavy Artillery Regiment, Bosporus, Constantinople
** Searchlight Detachment, Bosporus, Constantinople
** Torpedo Detachment, Bosporus, Constantinople
** Mine Detachment, Bosporus, Constantinople
** Wireless Detachment, Bosporus, Constantinople

## Balkan Wars
### Order of Battle, October 17, 1912

On October 17, 1912, the corps was structured as follows:
* I Corps (Thrace, under the command of the Eastern Army)
** 2nd Division, 3rd Division
** 1st Provisional Division

### Order of Battle, October 29, 1912

On October 29, 1912, the corps was structured as follows:
* I Corps (Thrace, under the command of the First Eastern Army)
** 2nd Division, 3rd Division
** 1st Provisional Division, Uşak Redif Division

### Order of Battle, November 17, 1912

On November 17, 1912, the corps was structured as follows:
* I Corps (Thrace, under the command of the Chataldja Army)
** 2nd Division, 3rd Division
** South Wing Detachment
* I Provisional Reserve Corps
** 29th Division
** Ergli Redif Division, Kayseri Redif Division

### Order of Battle, March 25, 1913

On March 25, 1913, the corps was structured as follows:
* I Corps (Thrace, under the command of the Chataldja Army)
** 2nd Division
** Fatih Redif Division
* I Provisional Reserve Corps
** 29th Division,
** Ergli Redif Division, Kayseri Redif Division

### Order of Battle, July 1913

* I Corps (Thrace)
** 2nd Division, 28th Division, Fatih Infantry Division

## World War I
### Order of Battle, August 1914, November 1914

In August 1914, November 1914, the corps was structured as follows:
* I Corps (Thrace)
** 1st Division, 2nd Division, 3rd Division

### Order of Battle, Late April 1915

In late April 1915, the corps was structured as follows:
* I Corps (Thrace)
** 1st Division, 2nd Division

### Order of Battle, Late Summer 1915, January 1916

In late Summer 1915, January 1916, the corps was structured as follows:
* I Corps (Gallipoli)
** 2nd Division, 3rd Division

### Order of Battle, August 1916

In August 1916, the corps was structured as follows:
* I Corps (Gallipoli)
** 14th Division, 16th Division

### Order of Battle, December 1916

In December 1916, the corps was structured as follows:
* I Corps (Thrace)
** 14th Division, 16th Division

### Order of Battle, August 1917, January 1918, June 1918, September 1918

In August 1917, January 1918, June 1918, September 1918, the corps was structured as follows:
* I Corps (Thrace)
** 42nd Division

## After Mudros
### Order of Battle, November 1918

In November 1918, the corps was structured as follows:
* I Corps (Thrace)
** 55th Division

### Order of Battle, January 1919

In January 1919, the corps was structured as follows:
* I Corps (Thrace, Adrianople; present day Edirne)
** 49th Division (Kırkkilise; present day Kırklareli)
*** 153rd Infantry Regiment, 154th Infantry Regiment, 155th Infantry Regiment, 185th Infantry Regiment
** 60th Division (Malkara)
*** 186th Infantry Regiment, 187th Infantry Regiment

## Sources

* ↑ Tucker, Spencer (2009). A global chronology of conflict: from the ancient world to the modern Middle East. ABC-CLIO. p. 1549. ISBN 978-1-85109-667-1. Retrieved 28 March 2020.
* ↑ Edward J. Erickson, Defeat in Detail, The Ottoman Army in the Balkans, 1912–1913, Westport, Praeger, 2003, pp. 371–372.
* ↑ Edward J. Erickson, Defeat in Detail, The Ottoman Army in the Balkans, 1912–1913, Westport, Praeger, 2003, p. 83.
* ↑ Edward J. Erickson, Defeat in Detail, The Ottoman Army in the Balkans, 1912–1913, Westport, Praeger, 2003, p. 103.
* ↑ Edward J. Erickson, Defeat in Detail, The Ottoman Army in the Balkans, 1912–1913, Westport, Praeger, 2003, p. 128.
* ↑ Edward J. Erickson, Defeat in Detail, The Ottoman Army in the Balkans, 1912–1913, Westport, Praeger, 2003, p. 287.
* ↑ Edward J. Erickson, Order to Die: A History of the Ottoman Army in the First World War, Greenwood Press, 2001, ISBN 0-313-31516-7, p. 38, 43.
* ↑ Edward J. Erickson, Order to Die: A History of the Ottoman Army in the First World War, Greenwood Press, 2001, ISBN 0-313-31516-7, p. 86.
* ↑ Edward J. Erickson, Order to Die: A History of the Ottoman Army in the First World War, Greenwood Press, 2001, ISBN 0-313-31516-7, p. 109, 126.
* ↑ Edward J. Erickson, Order to Die: A History of the Ottoman Army in the First World War, Greenwood Press, 2001, ISBN 0-313-31516-7, p. 134.
* ↑ Edward J. Erickson, Order to Die: A History of the Ottoman Army in the First World War, Greenwood Press, 2001, ISBN 0-313-31516-7, p. 154.
* ↑ Edward J. Erickson, Order to Die: A History of the Ottoman Army in the First World War, Greenwood Press, 2001, ISBN 0-313-31516-7, p. 170, 181, 188, 197.
* ↑ Edward J. Erickson, Order to Die: A History of the Ottoman Army in the First World War, Greenwood Press, 2001, ISBN 0-313-31516-7, p. 202.
* ↑ Edward J. Erickson, Order to Die: A History of the Ottoman Army in the First World War, Greenwood Press, 2001, ISBN 0-313-31516-7, p. 209.
* ↑ Zekeriya Türkmen, Mütareke Döneminde Ordunun Durumu ve Yeniden Yapılanması (1918-1920), Türk Tarih Kurumu Basımevi, 2001, ISBN 975-16-1372-8, p. 326.