4th Infantry Division (United States)

4th Infantry Division
Insignia of the 4th Infantry Division
Active1917–1921
1940–1946
1947–present
Country United States
Branch United States Army
TypeStryker Infantry
Light Infantry
Combined Arms
SizeDivision
Part ofIII Armored Corps
Garrison/HQFort Carson
Nickname(s)"Ivy Division", "Iron Horse", "Ivy"
Motto(s)Steadfast and Loyal
Engagements
Commanders
Current
commander
MG David S. Doyle
Notable
commanders
Full list of commanders
Insignia
Distinctive unit insignia
Subdued shoulder sleeve insignia worn on OCP-ACU
Combat service identification badge

The 4th Infantry Division is a division of the United States Army based at Fort Carson, Colorado. It is composed of a division headquarters battalion, three brigade combat teams (two Stryker and one armor), a combat aviation brigade, a division sustainment brigade, and a division artillery.

The 4th Infantry Division's official nickname, "Ivy", is a play on words of the Roman numeral IV or 4. Ivy leaves symbolize tenacity and fidelity which is the basis of the division's motto: "Steadfast and Loyal". The second nickname, "Iron Horse", has been adopted to underscore the speed and power of the division and its soldiers.