Six Army units will deploy to Europe and the Middle East in the fall, the service announced Monday, July 21, 2025.  (U.S. Army)

WASHINGTON — Six Army units will deploy to Europe and the Middle East in the fall as part of regular unit rotations, the Army announced.

The 4th Combat Aviation Brigade of the 4th Infantry Division from Fort Carson, Colo., will deploy to U.S. Central Command, which overseas military operations in the Middle East, to replace the 101st Airborne Division Combat Aviation Brigade, which is based at Fort Campbell, Ky.

The 4th Sustainment Brigade of the 4th Infantry Division from Fort Carson, Colo., will also deploy to U.S. Central Command to replace the 17th Sustainment Brigade, which is a unit of the Nevada Army National Guard.

Several units are also deploying to Europe. In 2014, the U.S. launched Operation Atlantic Resolve after Russia’s initial invasion of Ukraine when it annexed the Crimean Peninsula. The operation — meant to bolster NATO’s eastern flank and dissuade Russian forces from entering the alliance’s territory — grew larger after Russia’s 2022 invasion of Ukraine.

The 3rd Division Artillery of the 3rd Infantry Division from Fort Stewart, Ga., will deploy to Europe to replace the 1st Division Artillery of the 1st Armored Division, which is based at Fort Bliss, Texas, to support the U.S. commitment to NATO.

The 3rd Combat Aviation Brigade of the 3rd Infantry Division from Fort Stewart, Ga., will deploy to Europe to replace the 1st Armored Division Combat Aviation Brigade, which is based at Fort Bliss, Texas.

The 3rd Armored Brigade Combat Team of the 1st Cavalry Division from Fort Hood, Texas, will deploy to Europe to replace the 1st Armored Brigade Combat Team of the 3rd Infantry Division, which is based at Fort Stewart, Ga.

The 1st Armored Brigade Combat Team of the 1st Infantry Division from Fort Riley, Kan., will deploy to Europe to replace the 3rd Armored Brigade Combat Team of the 1st Armored Division, which is based at Fort Bliss, Texas.