Germany. Forty-nine U.S. Army helicopters, as well as trucks and other support equipment from the 10th Combat Aviation Brigade (CAB), arrived in Europe to begin a nine-month rotation in support of Operation Atlantic Resolve in February 2017. The equipment arriving by ship in the Port of Bremerhaven, Germany, on February 11 included UH-60 Black Hawk and CH-47F Chinook helicopters. An additional 20 helicopters were scheduled to arrive later that month according to Army Command Sergeant Major Steven DiGeorgio, command sergeant major of the 10th CAB. The battalion departed from Fort Drum, New York, in January. Soldiers who arrived with the equipment prepared it for delivery to staging bases throughout Eastern Europe for a nine-month rotation to train with NATO partners. “A large proportion of this brigade would go to Katterbach and Illesheim, Germany,” said Army Major General Duane Gamble, the 21st Theater Sustainment Command commander. Advance teams arrived in Illesheim on February 8, and about 2,000 soldiers were scheduled to be stationed there and in nearby Ansbach.
Romania. On February 16, 2017, soldiers, tanks, and M88 recovery vehicles from the 1st Battalion, 8th Infantry Regiment’s “Fighting Eagles” arrived in support of Operation Atlantic Resolve. More than 350 U.S. soldiers arrived with another 150 set to arrive before the end of February. They unloaded M1A2 Abrams tanks from the first train that arrived February 14 to an eastern Romanian airbase located about 12 miles away from the Black Sea.
Germany. On February 22, 2017, Air Force Air Mobility Command C-5 Galaxy transports delivered AH-64 Apache helicopters to Ramstein Air Base, Germany, and were expected to deliver UH-60 Black Hawks to Latvia at the end the month as part of Operation Atlantic Resolve. The Apache helicopters were based out of Fort Bliss, Texas, and the Black Hawks are based at Fort Drum, New York. They were deployed to Europe on a nine-month rotation in support of Operation Atlantic Resolve. Some helicopters were being airlifted to various areas across Europe, while other equipment was moved by rail. The combat aviation brigade would have brought nearly 2,200 troops and about 50 Black Hawk, 10 Chinook, and 24 Apache helicopters to Germany, Latvia, and Romania.
England. Two B-2 Spirit stealth bombers arrived on June 9, 2017, from Whiteman Air Force Base, Missouri, joining B-1B Lancer and B-52 H Stratofortress bombers already there in theater assurance
Ukraine. On July 20, 2018, DOD announced that they would provide $200 million to Ukraine in security cooperation funds for additional training, equipment, and advisory efforts to build the defensive capacity of Ukraine’s forces. The additional funds were to provide equipment to aid ongoing training programs and operational needs, including “capabilities to enhance Ukraine’s command and control, situational awareness systems, secure communications, military mobility, night vision, and military medical treatment. A timeline for delivery and fielding of equipment will be determined at a later date
Lithuania. The United States and Lithuania signed a defense-cooperation agreement on April 2, 2019. The five-year agreement stated that the United States would send forces to the Baltic states “to strengthen deterrence and to catalyze the efforts of Estonia, Latvia and Lithuania to develop their national defense further.” Lithuania’s Defense Ministry was to provide all necessary support for the deployment of U.S. forces.
Poland. On June 12, 2019, President Trump and Polish President Andrzej Duda announced that Poland would host 1,000 additional U.S. troops under a new security agreement. With the increase, the total number of U.S. forces typically deployed to the NATO ally as a deterrent to Russia would come to more than 5,000. According to President Trump, as many as 2,000 troops would be moved from Germany to Poland under the new agreement—without adding to the overall number of U.S. troops in Europe. The new U.S. contingent “would include special operations forces, logistics troops and an Army division headquarters.” 106 The troops would be deployed to Poland on a rotational basis.
Europe. On April 23, 2000, the Army announced that the 1st Cavalry Division Headquarters stationed at Fort Hood, Texas, would deploy to Europe in summer 2000. The 1st Cavalry Division Headquarters contingent would replace the 1st Infantry Division Headquarters as the Atlantic Resolve Division Headquarters (Forward) in Poznan, Poland, in support of the United States’ commitment to NATO allies and partners.120 In addition, the Army announced the upcoming rotation of the 2nd Armored Brigade Combat Team, 3rd Infantry Division stationed at Fort Stewart, Georgia to Europe. The 2nd ABCT would replace 2nd Brigade Combat Team, 1st Cavalry Division in support of the United States’ commitment to NATO allies and partners
Europe. On October 8, 2021, the Army announced the fall rotational deployment of 4th Security Force Assistance Brigade (SFAB) elements to Europe. Advisor teams from the 4th SFAB, stationed at Fort Carson, Colorado, would deploy to multiple locations in the region to support the United States’ commitment to European Theater Security Cooperation.135 The Army also announced the 1st Cavalry Division Combat Aviation Brigade’s fall rotational deployment to Europe. Stationed at Fort Hood, Texas, the 1st Air Cavalry Brigade, would replace the 1st Infantry Division Combat Aviation Brigade to support the United States’ commitment to Atlantic Resolve.136 Europe. On December 16, 2021, the Army announced spring 2022 rotational deployment of the 3rd Armored Brigade Combat Team (ABCT), 4th Infantry Division, to Europe. Stationed at Fort Carson, Colorado, the 3rd ABCT would replace the 1st Armored Brigade Combat Team, 1st Infantry Division, as part of a regular rotation of forces to support the U.S. commitment to NATO allies and partners.
Instances of Use of United States Admed Forces Abroad 1798-2023, Congressional Research Service
https://crsreports.congress.gov R42738