U.S. Army Gen. Christopher Cavoli, commander, U.S. European Command, addresses the Adriatic Charter (A5) Chiefs of Defense Conference Sept. 22, 2022, in Budva, Montenegro. Chiefs of Defense or their representatives from the A5 Charter nations of Albania, Bosnia and Herzegovina, Croatia, Montenegro, North Macedonia and the U.S. were present at the event, as well as Chair of the Military Committee of NATO Adm. Rob Bauer, Royal Netherlands Navy. Montenegro's president, Milo Đukanović, delivered the keynote address for the event, which was hosted by Montenegro. Delegations from Kosovo and Slovenia also attended as observer nations. (Courtesy photo by the Montenegrin government)

U.S. Air Force Gens. Tod D. Wolters, the commander of U.S. European Command, left, and Jeffrey L. Harrigian, the outgoing commander of U.S. Air Forces in Europe-Air Forces Africa and NATO Allied Air Command, right, look on as Gen. James B. Hecker receives the USAFE-AFAFRICA guidon from Vice Chief of Staff of the Air Force Gen. David W. Allvin. The change of command ceremony was held at Ramstein Air Base, Germany, on June 27, 2022. (U.S. Air Force photo by Airman Jared Lovett)

An honor guard welcomes Secretary of Defense Lloyd J. Austin III as he arrives in Sofia, Bulgaria on March 18, 2022. (DoD photo by Chad J. McNeeley)

Secretary of Defense Lloyd J. Austin III speaks to Soldiers assigned to 2nd Cavalry Regiment in Bulgaria on March 18, 2022. (DoD photo by Chad J. McNeeley)

U.S. Air Force Brig. Gen. Edward Vaughan, the U.S. European Command deputy director for security cooperation, policy, partnering and space capabilities, second from right, joins, from left to right, Denmark’s foreign liaison officers to USEUCOM: Cdr. Brian Svendsen, Senior Cdr. Thomas Rasmussen and Senior Cdr. Anders Friis during military staff talks in Copenhagen, Denmark.

Led by Norwegian Defence Staff's deputy chief of staff for operations, Maj. Gen. Tonje Skinnarland, and U.S. European Command's deputy director for security cooperation, policy, partnering and space capabilities, U.S. Air Force Brig. Gen. Edward Vaughan, U.S. and Norwegian military officials conducted two days of bilateral staff talks in Oslo, Norway, focused upon long-term security cooperation in the Arctic and High North. (U.S. Air Force photo by Maj. Lia Harris)

Led by Norwegian Defence Staff's deputy chief of staff for operations, Maj. Gen. Tonje Skinnarland, and U.S. European Command's deputy director for security cooperation, policy, partnering and space capabilities, U.S. Air Force Brig. Gen. Edward Vaughan, U.S. and Norwegian military officials conducted two days of bilateral staff talks in Oslo, Norway, focused upon long-term security cooperation in the Arctic and High North. (U.S. Air Force photo by Maj. Lia Harris)

The Nimitz-class aircraft carrier USS Harry S. Truman (CVN 75), the Ticonderoga-class guided missile cruiser USS San Jacinto (CG 56), and the Royal Norwegian Navy Frigate HNoMS Fridtjof Nansen (F310) participate in a passing exercise with the Tunisian offshore patrol vessel Hannon (P612) and La Combatante III class fast patrol boat Tunis (502) in the Mediterranean Sea, Dec. 20, 2021. The Harry S. Truman Carrier Strike Group is on a scheduled deployment in the U.S. Sixth Fleet area of operations in support of naval operations to maintain maritime stability and security, and defend U.S., allied and partner interests in Europe and Africa.

U.S. Army Maj. Gen. Charles Miller, the U.S. European Command director of plans, policy, strategy and capabilities, center right, and Maj. Gen. Piotr Blazeusz, the deputy chief of General Staff for the Polish Armed Forces, sign a memorandum of understanding Jan 21, 2022, for a Polish liaison officer to join the USEUCOM headquarters staff. (U.S. Army photo by Rey Ramon)

A firing squad from 1st Battalion, 26th Infantry Regiment, 2nd Brigade, 101st Airborne Infantry Division (Air Assault), in a High Mobility Multi-Wheeled Vehicle right, and a Ukrainian armored military vehicle from the 10th Mountain Assault Brigade prepares to engage targets during a defensive maneuvers during Rapid Trident 2019 in Yavoriv, Ukraine, Sept. 26, 2019. The meeting is to discuss the first ever brigade sized element joint mounted defensive maneuver live fire exercise performed by the U.S. and the Armed Forces of Ukraine, which demonstrates the defensive capabilities of the multi-national force to build a stronger and more unified Europe. (U.S. Army photo by Sgt. Kyle Larsen.)

U.S. Navy Petty Officer 2nd Class Ryan McBee holds a memorial wreath during the JIOCEUR Analytic Center (JAC) 75th Anniversary of D-Day Ceremony at RAF Molesworth, England on June 6, 2019. During the ceremony, the JAC and RAF Molesworth community honored the men and women that served at the base in support of Operation Overlord and other D-Day operations. (U.S. Air Force photo by MSgt. Brian Kimball)

U.S. Army Colonel Matthew Ingram (center left) and U.S. Navy Captain Robert Hight (center right) display a memorial wreath during the JIOCEUR Analytic Center (JAC) 75th Anniversary of D-Day Ceremony at RAF Molesworth, England on June 6, 2019. During the ceremony, the JAC and RAF Molesworth community honored the men and women that served at the base in support of Operation Overlord and other D-Day operations. (U.S. Air Force photo by MSgt. Brian Kimball)

U.S. European Command (USEUCOM) hosts a Change of Command ceremony in which U.S. Army General Curtis M. Scaparrotti, Commander, United States European Command and NATO Supreme Allied Commander Europe relinquishes command to incoming USEUCOM Commander, U.S. Air Force General Tod D. Wolters. Also participating in the ceremony was Dr. Mark T. Esper, Secretary of the United States Army. This ceremony took place on Patch Barracks, Germany on May 02, 2019. (U.S. Army photo by Jason D. Johnston)

U.S. European Command (USEUCOM) hosts a Change of Command ceremony in which U.S. Army General Curtis M. Scaparrotti, Commander, United States European Command and NATO Supreme Allied Commander Europe relinquishes command to incoming USEUCOM Commander, U.S. Air Force General Tod D. Wolters. Also participating in the ceremony was Dr. Mark T. Esper, Secretary of the United States Army. This ceremony took place on Patch Barracks, Germany on May 02, 2019. (U.S. Army photo by Jason D. Johnston)

U.S. European Command (USEUCOM) hosts a Change of Command ceremony in which U.S. Army General Curtis M. Scaparrotti, Commander, United States European Command and NATO Supreme Allied Commander Europe relinquishes command to incoming USEUCOM Commander, U.S. Air Force General Tod D. Wolters. Also participating in the ceremony was Dr. Mark T. Esper, Secretary of the United States Army. This ceremony took place on Patch Barracks, Germany on May 02, 2019. (U.S. Army photo by Jason D. Johnston)

U.S. European Command (USEUCOM) hosts a Change of Command ceremony in which U.S. Army General Curtis M. Scaparrotti, Commander, United States European Command and NATO Supreme Allied Commander Europe relinquishes command to incoming USEUCOM Commander, U.S. Air Force General Tod D. Wolters. Also participating in the ceremony was Dr. Mark T. Esper, Secretary of the United States Army. This ceremony took place on Patch Barracks, Germany on May 02, 2019. (U.S. Army photo by Jason D. Johnston)