Hon. Raimonds Bergmanis, Latvian Minister of Defense, second from left, visits Latvian Army soldiers, assigned to 1st Infantry Battalion, during Exercise Allied Spirit VI at 7th Army Training Command’s Hohenfels Training Area, Germany, March 17, 2017. Exercise Allied Spirit includes about 2,770 participants from 12 NATO and Partner for Peace nations, and exercises tactical interoperability and tests secure communications within Alliance members and partner nations. (U.S. Army photo by Visual Information Specialist Gerhard Seuffert)

Soldiers with the Japan Ground Self-Defense Force log their shots from the 100 yard-line while conducting scout sniper training during Exercise Iron Fist 2014 aboard Camp Pendleton, Calif., Jan. 31, 2014. Iron Fist is an amphibious exercise that brings together Marines and sailors from the 15th Marine Expeditionary Unit, other I Marine Expeditionary Force units, and soldiers from the JGSDF, to promote military interoperability and hone individual and small-unit skills through challenging, complex and realistic training. (U.S. Marine Corps photo by Cpl. Emmanuel Ramos/Released)

Spc. Marco Caal Skonos, an infantryman from Jackson, Michigan, assigned to Company A, 3rd Battalion, 8th Cavalry Regiment, 3rd Armored Brigade Combat Team, 1st Cavalry Division, scans while patrolling at a squad live-fire May 11 in Wadi Shadiya, Jordan as part of Exercise Eager Lion 2017. Eager Lion was a two-weeklong multinational exercise with the Hashemite Kingdom of Jordan, in order to exchange military expertise and improve interoperability among partner nations. (U.S. Army photo by Staff Sgt. Leah R. Kilpatrick, 3rd Armored Brigade Combat Team Public Affairs Office, 1st Cavalry Division (released)

Lt. Col. Bradley L. Boyd, commander of the 2nd Battalion, 325th Airborne Infantry Regiment, 2nd Brigade Combat Team, 82nd Airborne Division, buddy rigs a paratrooper from the British 16 Air Assault Brigade on Pope Army Airfield, N.C., March 17, 2015. The jump certified the British paratroopers to conduct a joint forcible entry operation for the Combined Joint Operational Access Exercise led by 2nd BCT in April. The CJOAX represents a major milestone in the division’s interoperability program, which seeks to create a seamless integration of a U.K. brigade into the division and build operational compatibilities for a multinational crisis response options. (82nd Airborne Division photo by Sgt. Eliverto V. Larios/Released)

U.S. Soldiers with 2nd Squadron, 2d Cavalry Regiment, take cover during an urban warfare exercise as part of Exercise Allied Spirit IV at the 7th Army Joint Multinational Training Command's Hohenfels Training Area, Germany, Jan. 27, 2016. Exercise Allied Spirit includes more than 2,400 participants from seven NATO nations, and exercises tactical interoperability and tests secure communications within Alliance members and partner nations. (U.S. Army photo by Visual Information Specialist Gertrud Zach/released)

Children of Zambian military personnel gather at the Zambian Army Headquarters, Aug. 7, 2013, in Lusaka, Zambia to view an opening ceremony to begin the Africa Endeavor 2013 exercise. Africa Endeavor is Africa Command's annual 10-day communications exercise, focusing on interoperability and information sharing among African partners. The first Africa Endeavor was held in 2006 in South Africa; past exercises have taken place in Nigeria, Gabon, Ghana, The Gambia and Cameroon. (U.S. Army National Guard photo by Sgt. Bethany Fehringer/RELEASED)

A Polish soldier pulls guard from a watch tower during a field training exercise at Rapid Trident 2012 in Yavoriv, Ukraine, July 17. Rapid Trident is a multinational exercise held at the International Peacekeeping and Security Center in Yavoriv, Ukraine. It is designed to promote regional stability and security, strengthen international military partnering and foster trust while improving interoperability between participating nations. (Photo by Lt. Col. Vladimir Skorostetskiy, Ukrainian Army Public Affairs)

In addition to the Macedonia, this year's participants include: Austria, Azerbaijan, Denmark, Bulgaria, Canada, Germany, Georgia, Moldova, Norway, Poland, Romania, Serbia and Sweden, Ukraine, U.S. Rapid Trident is a multinational exercise held at the International Peacekeeping and Security Center in Yavoriv, Ukraine. It is designed to promote regional stability and security, strengthen international military partnering and foster trust while improving interoperability between participating nations. (Photo by U.S. Army Staff Sgt. Brooks Fletcher, U.S. Army Europe Public Affairs)

U.S. Marine Lance Cpl. Matthew Dooley, 1st Battalion, 1st Marine Regiment, provides security while conducting a helo insertion to a nighttime urban terrain raid training during Exercise Iron Fist 2014 aboard Camp Pendleton, Calif., Feb. 18, 2014. Iron Fist is an amphibious exercise that brings together Marines and sailors from the 15th Marine Expeditionary Unit, other I Marine Expeditionary Force units, and soldiers from the Japan Ground Self-Defense Force, to promote military interoperability and hone individual and small-unit skills through challenging, complex and realistic training. (U.S. Marine Corps photo by Cpl. Emmanuel Ramos/Released)

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An Oregon National Guard Soldier from the 3rd Battalion, 116th Cavalry Regiment, and a Bangladeshi Army Soldier escort a local role player to medical aid during a checkpoint scenario training as part of Exercise Tiger Lightning 2023 at the Bangladesh Institute of Peace Support Operation Training (BIPSOT) center near Dhaka, Bangladesh March 7, 2023. Tiger Lightning 2023, a bilateral exercise sponsored by the U.S. Indo-Pacific Command and hosted by the Bangladesh Armed Forces, works each year to strengthen Bangladesh peacekeeping readiness, promote interoperability and reinforces the partnership between the Bangladesh Armed Forces and the Oregon National Guard. (U.S. Army National Guard photo by Sgt. Hannah Hawkins)

Soldiers from the Japan Ground Self-Defense Force fire two 120mm mortar systems during Exercise Iron Fist 2014 aboard Camp Pendleton, Calif., Feb. 3, 2014. Iron Fist 2014 is an amphibious exercise that brings together Marines and sailors from the 15th Marine Expeditionary Unit, other I Marine Expeditionary Force units, and soldiers from the JGSDF, to promote military interoperability and hone individual and small-unit skills through challenging, complex and realistic training. (U.S. Marine Corps photo by Sgt. Jamean R. Berry/Released)

A Michigan Army National Guard medic from C2CRE, B cell, renders medical care to a wounded civilian (training actor) after mass decontamination procedures were rehearsed at Fort Polk Joint Readiness Training Center, March 19, 2016. C2CRE is the Command and Control Chemical, Biological, Radiological, Nuclear Response Element for the U.S. Army and is divided into A and B cells supported by different parts of the U.S. Army. This exercise is intended to sustain the abilities of the C2CRE elements while enhancing interoperability between the two cells and facilitating the efficient hand off between both units in real world emergencies. (U.S. Army National Guard photo by Spc. Eric Bandy/Released)

U.S. Marine Corps Staff Sgt. Tyler Main, left, crew chief, Marine Medium Tiltrotor Squadron 265 (Rein), 31st Marine Expeditionary Unit, assists Lance Cpl. Michael Keller as he fires a M2 .50 caliber machinegun at a ground target while participating in a close air support mission during exercise Ssang Yong 2014 on April 1, 2014. Exercise Ssang Yong is conducted annually in the Republic of Korea (ROK) to enhance the interoperability of U.S. and ROK forces by performing a full spectrum of amphibious operations while showcasing sea-based power projection in the Pacific. (U.S. Marine Corps Photo by Lance Cpl. Katelyn Hunter/Released).

Philippine and U.S. Service members parachute from a MV-22B Osprey aircraft following a static line jump May 13, 2014 in Basa, Philippines during Balikatan 2014. In its 30th iteration, Balikatan is an annual bilateral exercise between the U.S. and the Republic of the Philippines and aims at building both nations interoperability during joint planning, contingency, humanitarian and disaster relief operations. (U.S. Marine Corps photo by Lance Cpl. Abbey M. Perria/Released)

U.S. Army Paratroopers assigned to Special Operations Command Europe, practice on an aircraft mockup as part of pre jump sustained airborne training drills during a combined U.S. and German monthly airborne jump, at Stuttgart Army Airfield, March 11, 2020. Monthly jumps at SOCEUR are designed to assess the readiness of paratroopers, maintain currency and to promote interoperability with participating allies and partner nations. (U.S. Army photo by Staff Sgt. Thomas Mort)

Dragoon Troopers assigned to Bull Troop, 1st Squadron, 2d Cavalry Regiment along with German Soldiers assigned to the 12th Armored Brigade and the 10th Panzer Division conduct vehicle convoy operations and maneuvers during Operation Angry Lion at Bergen NATO Training Area, Germany, Feb. 3, 2015. The exercise was designed to provide training at task force and battalion levels as well as enhance multinational interoperability to plan and conduct operations.

PACIFIC OCEAN (May 29, 2021) Sailors assigned to the forward-deployed amphibious assault ship USS America (LHA 6) move ammunition on the ship’s flight deck. America, lead ship of the America Amphibious Ready Group operating in the U.S. 7th Fleet area of operations to enhance interoperability with allies and partners and serve as a ready response force to defend peace and stability in the Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 2nd Class Walter Estrada)

A U.S. Soldier with 2nd Squadron, 2d Cavalry Regiment, runs for cover during an urban warfare exercise as part of Exercise Allied Spirit IV at the 7th Army Joint Multinational Training Command's Hohenfels Training Area, Germany, Jan. 27, 2016. Exercise Allied Spirit includes more than 2,400 participants from seven NATO nations, and exercises tactical interoperability and tests secure communications within Alliance members and partner nations. (U.S. Army photo by Visual Information Specialist Gertrud Zach/released)

U.S. Soldiers with 2nd Cavalry Regiment use a large vinyl map (produced by Training Support Activity Europe's Training Aids Production Center or TAPC) at a Rock Drill for upcoming Exercise Saber Strike at the 7th Army Joint Multinational Training Command's Grafenwoehr Training Area, Germany, April 28, 2016..

TAPC specializes in the design, production, and fabrication of non-standard (custom) training aids, models, displays, posters, exhibits, visual information services, or any other items that cannot be acquired from the Training Support Centers (TSCs) within United States Army Europe (USAREUR). .

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(U.S. Army photo by Visual Information Specialist Markus Rauchenberger/released)

INDIAN OCEAN (Aug. 27, 2017) The Talwar-class frigate INS Trikand (F51) maneuvers with the amphibious dock landing ship USS Pearl Harbor (LSD 52) in preparation for a live-fire gunnery exercise as part of bilateral interoperability drills following the Pearl Harbor’s visit to Goa, India. The bilateral drills between Pearl Harbor and Trikand were aimed to enhance interoperability between the two navies and emphasize the importance of communications and coordination while operating together at sea. Pearl Harbor, with embarked 15th Marine Expeditionary Unit, recently completed a routine port visit to Goa, India to experience the city’s culture and history as part of their scheduled patrol in the Indo-Asia-Pacific region. (U.S. Navy photo by Ensign Kris Rodriguez/Released)

Sgt. Tyler J. Fox spots targets down range in preparation of an unknown distance qualification range August 18 at Bradshaw Field Training Area, Northern Territory, Australia, during Exercise Koolendong 14. The range focused on increasing the scout sniper's long range precision firing capabilities. The Marines challenged themselves with the M40 A5, M110 SASS and the M107 SASR. The Marines are with Scout Sniper Platoon, 1st Battalion, 5th Marine Regiment and are currently deployed in part of the Marine Rotational Force Darwin. The rotational deployment of U.S. Marines affords an unprecedented combined training opportunity with our Australian allies, and improves interoperability with our forces. Fox, a Winamac, Indiana native, is a scout sniper and chief scout for the platoon. (Marine Corps Photo by Lance Cpl. Joey S. Holeman, Jr./ Released)

Military personnel and delegates from more than 40 nations gather at the Zambian Army Headquarters, Aug. 7, 2013, in Lusaka, Zambia for an opening ceremony to begin the Africa Endeavor 2013 exercise. Africa Endeavor is Africa Command's annual 10-day communications exercise, focusing on interoperability and information sharing among African partners. The first Africa Endeavor was held in 2006 in South Africa; past exercises have taken place in Nigeria, Gabon, Ghana, The Gambia and Cameroon. (U.S. Army National Guard photo by Sgt. Bethany Fehringer/RELEASED)

In addition to Moldova, this year's participants include: Austria, Azerbaijan, Denmark, Bulgaria, Canada, Germany, Georgia, Macedonia, Norway, Poland, Romania, Serbia and Sweden, Ukraine, U.S. Rapid Trident is a multinational exercise held at the International Peacekeeping and Security Center in Yavoriv, Ukraine. It is designed to promote regional stability and security, strengthen international military partnering and foster trust while improving interoperability between participating nations. (Photo by U.S. Army Staff Sgt. Brooks Fletcher, U.S. Army Europe Public Affairs)

Opposing forces Soldier Pvt. Clinton Lopez of Mcloud, Okla., fires a squad assault weapon at Bulgarian forces advancing to the mock village. As part of Exercise Saber Junction 14, Bulgarian soldiers attacked and cleared a village against opposing forces of 1st Battalion, 4th Infantry Regiment Soldiers Aug. 30 at Hohenfels Training Area. Exercise Saber Junction 2014 includes participants from the U.S., NATO allies and European security partners, conducting unified land operations at the 7th Army's Joint Multinational Training Command's Hohenfels Training Area. The exercise trains units in the simultaneous combination of offensive, defensive and stability operations while improving international interoperability, commitment to NATO and allied nations and strategic access to critical areas within the European Command's area of responsibility. More information about Saber Junction 2014 can be found at www.eur.army.mil/SaberJunction/ (U.S. Army photo by Sgt. Christina Dion/Released)

NEW RIVER, N.C. (July 9, 2019) A U.S. Marine Corps MV-22B and a Japan Ground Self-Defense Force (JGSDF) V-22 Osprey conduct aerial maneuvers at Marine Corps Air Station New River, North Carolina, July 9, 2019. Marines assigned to Marine Medium Tiltrotor Training Squadron 204 and JGSDF soldiers conducted a confined area landing exercise as part of their integrated training, strengthening relations and interoperability between the North Atlantic Treaty Organization allies. (U.S. Marine Corps photo by Lance Cpl. Elias E. Pimentel III/Released)

Battle Group Poland U.S. Soldiers conduct sling-load training with the M777 Howitzer near the Bemowo Piskie Training Area during Saber Strike 17 June 7. Saber Strike 17 is a U.S. Army Europe-led multinational combined forces exercise conducted annually to enhance the NATO alliance throughout the Baltic region and Poland. This year’s exercise includes integrated and synchronized deterrence-oriented training designed to improve interoperability and readiness of the 20 participating nations’ militaries. (U.S. Army photo by Charles Rosemond, Training Support Team Orzysz)

Soldiers of the 396th Combat Support Hospital out of Spokane, Wash. and members of the Botswana Defense Force medical corps practice litter carries during Southern Accord 2012 at Thebephatshwa Air Base, The Republic of Botswana. The 396th is in Botswana as part of SA 12 a joint exercise that brings together U.S. military personnel with their counterparts from the BDF to conduct humanitarian assistance/disaster relief operations, peacekeeping operations and aeromedical evacuation to enhance military capabilities and interoperability.

(U.S. Army Africa photo by Sgt. James D. Sims, 139th MPAD, U.S. Army)

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After walking about 3 kilometers through forests, Paratroopers of Company A, 1st Battalion, 503rd Infantry Regiment, 173rd Airborne Brigade, made their way from the air assault infiltration location and tactically moved on foot through thick vegetation. Their objective was to conduct a deliberate attack on the military operations on an urban terrain site known as Haaslat Village at Hohenfels Training Area Aug. 28. Exercise Saber Junction 2014 includes participants from the U.S., NATO allies and European security partners, conducting unified land operations at the 7th Army's Joint Multinational Training Command's Hohenfels Training Area. The exercise trains units in the simultaneous combination of offensive, defensive and stability operations while improving international interoperability, commitment to NATO and allied nations and strategic access to critical areas within the European Command's area of responsibility. More information about Saber Junction 2014 can be found at www.eur.army.mil/SaberJunction/ (U.S. Army photo by Sgt. Christina M. Dion/Released)

U.S. Army Cpt. Jason Cox, a civil affairs officer, collaborates with Romanian Multinational Division-South East (MND-SE) Lt. Col. George Feleaga, a civilian-military cooperation (CIMIC) officer, on procedures concerning the freedom of movement and maneuverability for land forces and the safety of the civilian population during the MND-SE European Reassurance Initiative command post exercise at the Romanian Land Forces Combat Training Center, Cincu, Romania July 30, 2016. The command post exercise simulation is a Joint Combined Exchange Training event that further augments our communications and interoperability. The commanders and staffs are trained in the development of combined planning, standing operating procedures and staff battle drills in a force-on-force environment to demonstrate continued commitment to the collective security of NATO and dedication to enduring peace and stability in the region. (U.S. Army photo by Staff Sgt. Anita VanderMolen, 115th Mobile Public Affairs Detachment, Oregon Army National Guard)

Leadership from 4th Squadron, 2nd Cavalry Regiment, held a static display for people from Gyor, Hungary that showcased their M1126 Stryker Combat Vehicles alongside Hungarian military vehicles during the Dragoon Crossing, a tactical road march starting out at Rose Barracks, Germany and continuing through the Czech Republic and the Slovak Republic ending in Hungary on Sept. 17, 2015. The purpose of the exercise is to reassure NATO Allies of the U.S. intent during Operation Atlantic Resolve while demonstrating interoperability and freedom of movement throughout Eastern Europe. (U.S. Army photo by Sgt. William A. Tanner/released)

Soldiers from the Hungarian Defense Forces test a temporary bypass bridge built to cross over the Danube River using one of their FUG (Felderito Uszo Gerkosci) light reconnaissance armored combat vehicles during Dragoon Crossing, a tactical road march conducted by Troopers assigned to 4th Squadron, 2nd Cavalry Regiment, starting out at Rose Barracks, Germany and continuing through the Czech Republic and the Slovak Republic ending in Hungary on Sept. 17, 2015. The purpose of the exercise is to reassure NATO Allies of the U.S. intent during Operation Atlantic Resolve while demonstrating interoperability and freedom of movement throughout Eastern Europe. (U.S. Army photo by Sgt. William A. Tanner/released)

Marines from 1st Air Naval Gunfire Liaison Company during Exercise Iron Fist 2014 aboard Camp Pendleton, Calif., Jan. 24, 2014. Iron Fist 2014 is an amphibious exercise that brings together Marines and sailors from the 15th Marine Expeditionary Unit, other I Marine Expeditionary Force units, and soldiers from the JGSDF, to promote military interoperability and hone individual and small-unit skills through challenging, complex and realistic training. (U.S. Marine Corps photo by Lance Cpl. Anna K. Albrecht/Released)

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Infantrymen assigned to the 3rd Battalion, 8th Cavalry Regiment, 3rd Armored Brigade Combat Team, 1st Cavalry Division clean their weapons in preparation for a joint, combined unknown distance live-fire range with the U.S. Marines and the Italian Army May 9 during Exercise Eager Lion 2017 in Wadi Shadiya, Jordan. Eager Lion was a two-weeklong multinational exercise with the Hashemite Kingdom of Jordan, in order to exchange military expertise and improve interoperability among partner nations. (U.S. Army photo by Staff Sgt. Leah R. Kilpatrick, 3rd Armored Brigade Combat Team Public Affairs Office, 1st Cavalry Division (released)

BALTIC SEA (June 11, 2020) Royal Norwegian Navy HNOMS Otto (F312) transits under the Storebaelt Bridge during BALTOPS 2020, June 11. BALTOPS is the premier annual maritime-focused exercise in the Baltic region, enhancing flexibility and interoperability among allied and partner nations. (Photo courtesy of the Standing Nato Maritime Group 1)

A Slovenian soldier of 3rd Company, 10th Regiment pulls security during a movement to contact lane at Exercise Allied Spirit IV at the 7th Army Joint Multinational Training Command's Hohenfels Training Area, Germany, Jan. 21, 2016.Exercise Allied Spirit includes more than 2,200 participants from six NATO nations, and exercises tactical interoperability and tests secure communications within Alliance members and partner nations. (U.S. Army photo by Visual Information Specialist Markus Rauchenberger/released)

A multinational delegation of military and civilian leaders visits Latvian and U.S. Soldiers, during Exercise Allied Spirit VI at 7th Army Training Command’s Hohenfels Training Area, Germany, March 17, 2017. Exercise Allied Spirit includes about 2,770 participants from 12 NATO and Partner for Peace nations, and exercises tactical interoperability and tests secure communications within Alliance members and partner nations. (U.S. Army photo by Visual Information Specialist Gerhard Seuffert)

Soldiers with the Japan Ground Self-Defense Force fire a 120mm mortar system during Exercise Iron Fist 2014 aboard San Clemente Island, Calif., Feb. 14, 2014. Iron Fist is an amphibious exercise that brings together Marines and Sailors from the 15th Marine Expeditionary Unit, other I Marine Expeditionary Force units, and soldiers from the Japan Ground Self-Defense Force, to promote military interoperability and hone individual and small-unit skills through challenging, complex and realistic training. (U.S. Marine Corps photo by Sgt. Jamean R. Berry/Released)

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U.S. Marines from Echo Battery, 2nd Battalion, 11th Marine Regiment, load M120 120mm Mortar System during Exercise Iron Fist 2014 aboard San Clemente Island, Calif., Feb. 14, 2014. Iron Fist is an amphibious exercise that brings together Marines and Sailors from the 15th Marine Expeditionary Unit, other I Marine Expeditionary Force units, and soldiers from the Japan Ground Self-Defense Force, to promote military interoperability and hone individual and small-unit skills through challenging, complex and realistic training. (U.S. Marine Corps photo by Sgt. Jamean R. Berry/Released)

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original IE diagram by andypowe11

A Romanian TR-85 Main Battle Tank conducts tactical operations and maneuvers towards its objective while participating in a multinational combined arms demonstration alongside Troopers assigned to 2nd Squadron, 2nd Cavalry Regiment and British soldiers belonging to the Coldstream Guard, during an Exercise Wind Spring Distinguished Visitor's event at Smardan Training Area, Romania, Apr. 18, 2015. The purpose of the event was to demonstrate interoperability between NATO Allies, while also allowing members of the Romanian government, along with British military leadership, to watch as the units worked and trained together in support of Operation Atlantic Resolve-South. (U.S. Army photo by Sgt. William A. Tanner/released)

170807-N-KB401-394 THE MINCH, Scotland (Aug. 7, 2017) The Nimitz-class aircraft carrier USS George H.W. Bush (CVN 77), the Royal Navy Duke-class frigate HMS Westminster (F237), and the Royal Norwegian Navy frigate Helge Ingstad (F313) transit the Minch, Scotland, during exercise Saxon Warrior 2017, Aug. 7. Saxon Warrior is a United States and United Kingdom co-hosted carrier strike group exercise that demonstrates interoperability and capability to respond to crises and deter potential threats. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael B. Zingaro/Released)

Slovenian soldiers of 3rd Company, 10th Regiment take a knee during a situational training exercise lane at Exercise Allied Spirit IV at the 7th Army Joint Multinational Training Command's Hohenfels Training Area, Germany, Jan. 21, 2016. Exercise Allied Spirit includes more than 2,200 participants from six NATO nations, and exercises tactical interoperability and tests secure communications within Alliance members and partner nations. (U.S. Army photo by Visual Information Specialist Markus Rauchenberger/released)

Slovenian soldiers of 3rd Company, 10th Regiment carry a machine gun during a situational training exercise lane at Exercise Allied Spirit IV at the 7th Army Joint Multinational Training Command's Hohenfels Training Area, Germany, Jan. 21, 2016. Exercise Allied Spirit includes more than 2,200 participants from six NATO nations, and exercises tactical interoperability and tests secure communications within Alliance members and partner nations. (U.S. Army photo by Visual Information Specialist Markus Rauchenberger/released)

170808-N-OX430-015 ATLANTIC OCEAN (Aug. 8, 2017) The Royal Navy aircraft carrier HMS Queen Elizabeth (R08) transits alongside the Nimitz-class aircraft carrier USS George H.W. Bush (CVN 77) during exercise Saxon Warrior 2017, Aug. 8. Saxon Warrior is a United States and United Kingdom co-hosted carrier strike group exercise that demonstrates interoperability and capability to respond to crises and deter potential threats. (U.S. Navy photo by Mass Communication Specialist 3rd Class Daniel Gaither/Released)

Leadership from 4th Squadron, 2nd Cavalry Regiment, held a static display for people from Gyor, Hungary that showcased their M1126 Stryker Combat Vehicles alongside Hungarian military vehicles during the Dragoon Crossing, a tactical road march starting out at Rose Barracks, Germany and continuing through the Czech Republic and the Slovak Republic ending in Hungary on Sept. 17, 2015. The purpose of the exercise is to reassure NATO Allies of the U.S. intent during Operation Atlantic Resolve while demonstrating interoperability and freedom of movement throughout Eastern Europe. (U.S. Army photo by Sgt. William A. Tanner/released)

An Italian soldier assigned to 3rd Company, Reggimento Lagunari runs toward an objective while an armored vehicle drives to a nearby support-by-fire position at a squad live-fire May 11 in Wadi Shadiya, Jordan as part of Exercise Eager Lion 2017. Eager Lion was a two-weeklong multinational exercise with the Hashemite Kingdom of Jordan, in order to exchange military expertise and improve interoperability among partner nations. (U.S. Army photo by Staff Sgt. Leah R. Kilpatrick, 3rd Armored Brigade Combat Team Public Affairs Office, 1st Cavalry Division (released)

Paratroopers assigned to the 2nd Brigade Combat Team, 82nd Airborne Division and the British 16 Air Assault Brigade board a C130 Hercules aircraft on Pope Army Airfield, N.C., March 17, 2015. The jump certified the British paratroopers to conduct a joint forcible entry operation for the Combined Joint Operational Access Exercise led by 2nd BCT in April. The CJOAX represents a major milestone in the Division’s interoperability program, which seeks to create a seamless integration of a U.K. brigade into the division and build operational compatibilities for a multinational crisis response options. (82nd Airborne Division photo by Sgt. Eliverto V. Larios/Released)

Slovenian soldiers of 3rd Company, 10th Regiment react to contact during a situational training exercise lane at Exercise Allied Spirit IV at the 7th Army Joint Multinational Training Command's Hohenfels Training Area, Germany, Jan. 21, 2016. Exercise Allied Spirit includes more than 2,200 participants from six NATO nations, and exercises tactical interoperability and tests secure communications within Alliance members and partner nations. (U.S. Army photo by Visual Information Specialist Markus Rauchenberger/released)

Military personnel and delegates from more than 40 nations gather at the Zambian Army Headquarters, Aug. 7, 2013, in Lusaka, Zambia for an opening ceremony to begin the Africa Endeavor 2013 exercise. Africa Endeavor is Africa Command's annual 10-day communications exercise, focusing on interoperability and information sharing among African partners. The first Africa Endeavor was held in 2006 in South Africa; past exercises have taken place in Nigeria, Gabon, Ghana, The Gambia and Cameroon. (U.S. Army National Guard photo by Sgt. Bethany Fehringer/RELEASED)

Military personnel and delegates from more than 40 nations gather at the Zambian Army Headquarters, Aug. 7, 2013, in Lusaka, Zambia for an opening ceremony to begin the Africa Endeavor 2013 exercise. Africa Endeavor is Africa Command's annual 10-day communications exercise, focusing on interoperability and information sharing among African partners. The first Africa Endeavor was held in 2006 in South Africa; past exercises have taken place in Nigeria, Gabon, Ghana, The Gambia and Cameroon. (U.S. Army National Guard photo by Sgt. Bethany Fehringer/RELEASED)