As 2018 approaches, it promises to be another busy year of overseas rotations for soldiers.

There were 120,000 soldiers deployed at any given time across the globe in 2017, according to Army leaders, who said missions ranged from training foreign troops to shaping the security environment. Recent Army announcements have highlighted upcoming and ongoing rotations.

As Afghanistan continues to be a strategic priority, two brigades of the 4th Infantry Division out of Fort Carson, Colo., will deploy there this spring, the Army announced.

The 2nd Infantry Brigade Combat Team will replace the 82nd Airborne Division’s 1st Infantry Brigade Combat Team based at Fort Bragg, N.C., and the 1st Stryker Brigade Combat Team will take over for the 4th Stryker Brigade Combat Team, a 25th Infantry Division unit based in Anchorage, Alaska.

The 4th ID deployments are part of regular rotations in support of Operation Freedom’s Sentinel, the Army said. Also expected to receive deployment orders early in 2018 is the 1st Security Force Assistance Brigade from Fort Benning, Ga.

In Europe, soldiers who comprise the Atlantic Resolve Sustainment Task Force, attached to the 16th Sustainment Brigade, arrived in Powidz and Poznan, Poland, earlier in December. The task force includes Regular Army, Army Reserve and National Guard units from Connecticut, California, Kentucky, Texas, Georgia, New York, North Carolina, Kansas and Virginia.

Integrating the three components in the European Theater for sustainment boosts combat power generation by focusing support on the regionally allocated forces in Europe, which include the 1st Armored Division’s 2nd Armored Brigade Combat Team and the 1st Air Cavalry Brigade of the 1st Cavalry Division, an Army news release said.

The sustainment task force will support Operation Atlantic Resolve by providing movement control, fuel, water, distribution, ammunition, supply, maintenance, laundry and postal support.