The 839th Transportation Battalion Surface Deployment and Distribution Command offloaded more than 300 pieces of equipment, including 10 helicopters, from the Liberty Promise commercial vessel, at the Port of Alexandroupoli, Greece, on May 5, 2021. The equipment will help set the theater for DEFENDER-Europe 21, a large-scale U.S. Army-led exercise designed to build readiness and interoperability between the U.S., NATO allies and partner militaries.