The 15th Cavalry Division was created with the 1st & 2nd Cavalry Brigades in February 1917 at Fort Sam Houston, Texas. It numbered in succession of the 1st–14th Divisions, which were not all active at its creation. Originally trained for deployment to Europe, its units were later converted into field artillery units. The division was deactivated on 12 May 1918. Elements of the division were reconstituted as the 1st Cavalry Division in 1920.

Organization

• Headquarters Element (34 men)
• 1st Cavalry Brigade (2,803 men)
  • 3rd Cavalry Regiment
  • 14th Cavalry Regiment
  • 15th Cavalry Regiment
    15th Cavalry Regiment (United States)
    The 15th Cavalry Regiment is a cavalry regiment of the United States Army. It was one of the Expansion Units originally established for the Spanish American War, but has been a general workhorse unit ever since.-Origins:...
    
    
• 2nd Cavalry Brigade
  2nd Brigade, 1st Cavalry Division
  The 2nd Advise and Assist Brigade, 1st Cavalry Division is a cavalry unit of the United States Army based in Fort Hood, Texas and is currently serving in Iraq as of May 2011.-Units:*5th Cavalry Regiment*8th Cavalry Regiment...
  
   (2,803 men)
  • Battery C, 6th Field Artillery (Horse)
  • 5th Cavalry Regiment (Transferred from Fort Bliss, Texas to Camp Stewart, Texas in April 1917).
  • 8th Cavalry Regiment (Transferred from Philippines Department to Fort Bliss, Texas on April 1917)
  • 9th Cavalry Regiment (Assigned to Fort Bliss, Texas; patrolled the US-Mexican Border from 1912 to 1917. Transferred from Fort Bliss, Texas to Philippines Department on April 1917)
  • 10th Cavalry Regiment (Assigned to Fort Huachuca
    Fort Huachuca
    Fort Huachuca is a United States Army installation under the command of the United States Army Installation Management Command. It is located in Cochise County, in southeast Arizona, about north of the border with Mexico. Beginning in 1913, for 20 years the fort was the base for the "Buffalo...
    
    , Arizona; patrolled the US-Mexican Border from 1913 to 1933).
  • 17th Cavalry Regiment
    17th Cavalry Regiment (United States)
    The 17th Cavalry is a historical organization within the United States Army that began as a regiment of cavalry after the Pancho Villa Expedition. The unit was constituted on 1 July 1916 in the Regular Army as the 17th Cavalry at Fort Bliss, Texas and originally inactivated 26 September 1921 at the...
    
     (Raised 1916; Assigned to Fort Bliss, Texas on April 1917)
• 3rd Cavalry Brigade (2,803 men)
  • 12th Cavalry Regiment
  • 13th Cavalry Regiment
    13th Cavalry Regiment (United States)
    The 13th Cavalry Regiment is a unit of the United States Army. The 1st and 2nd Squadrons are currently stationed at Fort Bliss, Texas as part of the 1st Armored Division.-Service History:...
    
    
• 7th Field Artillery
  7th Field Artillery Regiment (United States)
  The 7th Field Artillery Regiment is a United States Army field artillery regiment, whose lineage traces back to the early 20th century.-World War I:...
  
    (790 men)
• Engineer Battalion (357 men)
• Division Quartermaster Trains Command (276 men)
• Special Troops Command (337 men)
• Field Hospital No. 7
• Ambulance Company No.7 (63 men)

Stationing

• Headquarters, 15th Cavalry Division was located at Fort Bliss
  Fort Bliss
  Fort Bliss is a United States Army post in the U.S. states of New Mexico and Texas. With an area of about , it is the Army's second-largest installation behind the adjacent White Sands Missile Range. It is FORSCOM's largest installation, and has the Army's largest Maneuver Area behind the...
  
  , Texas
• 1st Cavalry Brigade at Fort Sam Houston
  Fort Sam Houston
  Fort Sam Houston is a U.S. Army post in San Antonio, Texas.Known colloquially as "Fort Sam," it is named for the first President of the Republic of Texas, Sam Houston....
  
  , Texas
• 2nd Cavalry Brigade at Fort Bliss
• 3rd Cavalry Brigade at Fort Riley
  Fort Riley
  Fort Riley is a United States Army installation located in Northeast Kansas, on the Kansas River, between Junction City and Manhattan. The Fort Riley Military Reservation covers 100,656 acres in Geary and Riley counties and includes two census-designated places: Fort Riley North and Fort...
  
  , Kansas
  Kansas
  Kansas is a US state located in the Midwestern United States. It is named after the Kansas River which flows through it, which in turn was named after the Kansa Native American tribe, which inhabited the area. The tribe's name is often said to mean "people of the wind" or "people of the south...
  
  , later Douglas, Arizona.

Miscellaneous

During World War One the National Guard organized four cavalry divisions: the 21st

21st Cavalry Division (United States)

The National Guard's 21st Cavalry Division was created from the perceived need for additional cavalry units after the First World War. It numbered in succession of the Regular Army Divisions, which were not all active at its creation...

, 22nd

22nd Cavalry Division (United States)

The National Guard's 22nd Cavalry Division was created from the perceived need for additional cavalry units. It numbered in succession after the Regular Army Divisions, which were not all active at its creation...

, 23rd

23rd Cavalry Division (United States)

The National Guard's 23rd Cavalry Division was created from the perceived need for additional cavalry units. It numbered in succession of the Regular Army Divisions, which were not all active at its creation...

, and 24th

24th Cavalry Division (United States)

The United States Army National Guard's 24th Cavalry Division was created from the perceived need for additional cavalry units. It numbered in succession of the Regular Army Divisions, which were not all active at its creation...

. The Organized Reserves organized six Cavalry Divisions: the 61st

61st Cavalry Division (United States)

The Organized Reserve's 61st Cavalry Division was constituted 15 October 1921 from the perceived need for additional cavalry units after World War One. It numbered in succession of the Regular Army Divisions, which were not all active at its creation. The Division was officially disbanded on 30...

, 62nd

62nd Cavalry Division (United States)

The Army Reserve's 62nd Cavalry Division was created from the perceived need for additional cavalry units. It numbered in succession of the Regular Army Divisions, which were not all active at its creation...

, 63rd

63rd Cavalry Division (United States)

The US Army's 63rd Cavalry Division, Organized Reserve, was created from the perceived need for additional cavalry units. It numbered in succession of the Regular Army Divisions, which were not all active at its creation....

, 64th

64th Cavalry Division (United States)

The 64th Cavalry Division of the United States Army Organized Reserve was created from the perceived need for additional cavalry units. It numbered in succession of the Regular Army Divisions, which were not all active at its creation....

, 65th

65th Cavalry Division (United States)

The Army Reserve's 65th Cavalry Division was created due to the perceived need for additional cavalry units. It was numbered in succession with the Regular Army Divisions, not all of which were active at its creation....

, and 66th

66th Cavalry Division (United States)

The Army Reserve's 66th Cavalry Division was created from the perceived need for additional cavalry units. It numbered in succession of the Regular Army Divisions, which were not all active at its creation. Going into World War II, the U.S...

.

15th

15th Sustainment Brigade (United States)

The 15th Sustainment Brigade is a sustainment brigade of the United States Army based at Fort Bliss, Texas. It provides logistics support to other units of the United States Army, and is subordinate to the 13th Sustainment Command...

 Sustainment Brigade

Sustainment Brigade

As part of the early 21st century transformation of the United States Army from a division-based structure to a brigade-based army; the Division Support Commands, Corps Support Groups, and Area Support Groups are being inactivated or transformed to Sustainment Brigades As part of the early 21st...

 derives its numerical designation from its origin as the 15th Cavalry Division Quartermaster Trains.

The brigade support battalions of the 1st Cavalry Division derive their numerical designations & lineage from the 15th Quartermaster Squadron & 15th Medical Squadron.

See also

• United States Army branch insignia
  United States Army branch insignia
  Branch insignia of the United States Army refers to military emblems that may be worn on the uniform of the United States Army to denote membership in a particular area of expertise and series of functional areas...
  
  
• Coats of arms of U.S. Armor and Cavalry Regiments
  Coats of arms of U.S. Armor and Cavalry Regiments
  This page has been split as follows:* Coats of arms of U.S. Armor Regiments* Coats of arms of U.S. Cavalry Regiments-See also:* commons:Field Army insignia of the United States Army* Corps insignia of the United States Army...
  
  

External links

• 1st Cavalry Division Home Page – official site.
• Formations of the United States Army
  Formations of the United States Army
  This is a list of historical formations of the United States Army.Units still in existence are in bold.For specific eras:* Formations of the United States Army during the Mexican Revolution* Formations of the United States Army during World War I...