Soldiers assigned to the 3rd Armor Brigade, 4th Infantry Division, pose for a photo after a conversion ceremony at Fort Irwin, California, July 29, 2026. The ceremony marked a historic transition as the unit converted from an Armored Brigade to a Stryker Brigade. (U.S Army photo by Sgt. William Rogers)
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4th Infantry (IVY) Division Brigade Units

• 1st Stryker Brigade Combat Team
• 2nd Stryker Brigade Combat Team
• 3rd Stryker Brigade Combat Team
• 4th Combat Aviation Brigade
• 4th Infantry Division Sustainment Brigade
• 4th Infantry Division Artillery

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