Soldiers assigned to 504th Quartermaster Company, 142nd Brigade Support Battalion, 15th Sustainment Brigade, 1st Armored Division and the Petroleum, Oils and Lubricants platoon, Alpha Company, 501st Brigade Support Battalion, 1st Brigade, 1st Armored Division conduct a "refuel on the move" during Iron Focus on the Fort Bliss training area March 30, 2015. US Army photo by Staff Sgt. George Gutierrez

The Army will deploy an armor brigade and an aviation brigade totaling about 2,300 soldiers to Afghanistan this winter as Afghan forces struggle to contain a Taliban resurgence there, the service announced Thursday.

1st Brigade, 1st Armored Division will deploy 1,500 of its El Paso-based soldiers, roughly half the brigade’s strength, to Afghanistan, said Major Allie Payne, a brigade spokeswoman. The 16th Combat Aviation Brigade, 7th Infantry Division at Joint Base Lewis-McChord in Washington will deploy about 800 soldiers this winter to support Operation Freedom’s Sentinel, the Army said.

In addition, the Army announced a third deployment Thursday of 3,000 soldiers from the 3rd Armored Brigade, 1st Cavalry Division at Fort Hood, Texas, to deploy to Kuwait this winter.

The 1st Brigade’s assignment is a routine deployment in support of Operation Freedom’s Sentinel, the U.S. mission to train Afghan forces and conduct counterterrorism operations against terrorists including al-Qaida and the Islamic State group.

The unit, outfitted with Stryker troop-carrying vehicles, will focus on ‘advise and assist’ missions to strengthen the ailing Afghan security forces near the city of Bagram in the northeast portion of the country, Payne said.

Bagram Air Field, the largest U.S. military installation in Afghanistan, was the site of a Nov. 12 suicide bomb attack inside the perimeter. It killed two soldiers, Sgt. John W. Perry and Pfc. Tyler R. Iubelt. A third soldier, Sgt. 1st Class Allan E. Brown, died this week from wounds sustained in the blast.

Soldiers with the 16th Combat Aviation Brigade will help their Afghan counterparts, who are pushed to their limits in air medevac operations in the fight against the Taliban, al-Qaida and the Islamic State group.

In one week in August, medevac flights across the country recovered 125 dead Afghan troops and 280 wounded, the Washington Post reported. By comparison, the worst month for U.S. forces in Afghanistan was in August 2011, when 71 troops were killed.

There are now 9,800 U.S. troops in Afghanistan. The number will drop to 8,400 by Jan. 20.

Operation Enduring Freedom, launched in 2001 to dislodge al-Qaida and the Taliban in Afghanistan, was reflagged to Operation Freedom’s Sentinel in 2014 to reflect the new role for U.S. troops. NATO agreed to extend operations there beyond 2016, the U.S.-led coalition said in May.

The 3rd Armored Brigade will stay combat-ready in Kuwait, as operations continue against the Islamic State group in Iraq and Syria.

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