4th Infantry Division (United States)

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4th Infantry Division
Insignia of the 4th Infantry Division
Active	1917–1921 1940–1946 1947–present
Country	United States
Branch	United States Army
Type	Stryker Infantry Light Infantry Combined Arms
Size	Division
Part of	III Armored Corps
Garrison/HQ	Fort Carson
Nickname(s)	"Ivy Division",[1] "Iron Horse", "Ivy"
Motto(s)	Steadfast and Loyal
Engagements	World War I Aisne-Marne Saint-Mihiel World War II Normandy Northern France Rhineland Ardennes-Alsace Central Europe Vietnam War Operation Attleboro Operation Junction City Cambodian Campaign War on Terror Iraq War War in Afghanistan Operation Inherent Resolve Operation Atlantic Resolve
Commanders
Current commander	MG David S. Doyle[2]
Notable commanders	MG Oliver W. Dillard MG Paul LaCamera MG Raymond T. Odierno
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.^[3]