Vietnam War US Army 4th Infantry Division Cut Edge Patch（1964~1973）
The 4th Infantry Division is a division of the United States Army based at Fort Carson, Colorado. It is composed of a Division Headquarters and Headquarters Battalion, three Brigade Combat Teams (1st Stryker BCT, 2nd Infantry BCT, and 3rd Armored BCT), a Combat Aviation Brigade, the 4th Infantry 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.