This is the order of battle for the Russian invasion of Ukraine. It should not be considered complete; up-to-date; nor fully accurate, being based on open-source press reporting.
The 1st Separate Feodosia Battalion of Marines is a marine battalion of the Ukrainian Marine Corps part of the 36th Marine Brigade. It is located in the city of Mykolaiv, on the Alyaudy Peninsula.
The 116th Independent Brigade of the Territorial Defense Forces is a military formation of the Territorial Defense Forces of Ukraine in Poltava Oblast. It is part of Operational Command North.
The 32nd Separate Mechanized Brigade is a brigade of the Ukrainian Ground Forces formed in 2023. Originally the brigade was going to be armed with an unknown number of M2 Bradleys, 10 Czech T-72EA tanks and 90 MaxxPro armored trucks but was later reported to be equipped with older T-64s and M113s.
Denys Oleksiiovych Shleha is a Ukrainian serviceman, colonel of the National Guard of Ukraine, a participant of the Russian-Ukrainian war. Hero of Ukraine (2022).
503rd Separate Marine Bataillon is a bataillon of the 38th Marine Brigade. It was established in late 2015 as a part of the Ukrainian Navy's 36th Marine Brigade as the 701st Marine Battalion but was transferred to the Ukrainian Marine Corps in 2018. It became a part of the 38th Marine Brigade in February 2023 which was established on the basis of the battalion. It is garrisoned at Mariupol.
The 2023 Ukrainian counteroffensive was a major offensive against Russian forces occupying Ukrainian territory with the goal of breaching the front lines. Efforts were made in many directions, primarily in the Donetsk and Zaporizhzhia oblasts. In total, Ukraine recaptured 14 villages with a total pre-war population of around 5,000 but suffered heavy casualties in the process. Western officials have said that such losses were not unexpected for attacking forces. The counteroffensive was widely regarded as a crucial moment in the war but also as a failure for Ukrainian forces.
88th Separate Marine Air Assault Battalion is a battalion of the 35th Marine Brigade of the Ukrainian Marine Corps tracing its origins to the Soviet 98th Airborne Division. It is an aeromobile and amphibious unit capable of performing combat operations from the land, sea and air. It is based at the city of Bolhrad in Odessa Oblast.
The 14th Radio Technical Brigade "Bohdan Khmelnytskyi" is a Brigade of the Ukrainian Air Force concerned with radar operations in South Ukraine and is subordinated to the Air Command South. It is headquartered in Odesa and operates many radar systems including the "Pelican".
The 3rd Operational Assignment Spartan Brigade "Petro Bolbochan" is a brigade of the National Guard of Ukraine. It is a part of the Ukrainian Offensive Guard and was established in 2014 in Kharkiv. It has taken part in multiple engagements throughout the Russo-Ukrainian war and is currently deployed on the frontlines.
11th Separate Public Order Odessa Brigade "Mykhailo Hrushevsky" is a brigade of the National Guard of Ukraine tasked with protection of public law and order, and after the Russian invasion of Ukraine, the territorial integrity of Ukraine. It was established in 1992 as the 7th Separate National Guard Regiment on the basis of the 42nd Special Motorized Militia Regiment. It is headquartered in Odessa city.
The 23rd Public Order Protection Brigade "Khortytsia" is a Brigade of the National Guard of Ukraine tasked with protection of the public order and the territorial integrity of Ukraine. It was established on January 2, 1992, as the 8th NG Regiment on the basis of the 22nd Separate Special Motorized Militia Battalion. It has seen combat during the War in Donbass and the Russian invasion of Ukraine. Its units are headquartered in Zaporizhzhia, Melitopol, Berdyansk and Energodar.
The 31st Public Order Protection Brigade "Major General Oleksandr Radievskyi" is a Brigade of the National Guard of Ukraine tasked with protection of the public order and the territorial integrity of Ukraine. It was established on January 2, 1992, as the 5th NG Regiment on the basis of the 24th Separate Special Motorized Militia Battalion. It has seen combat during the War in Donbas and the Russian invasion of Ukraine. It's headquartered in Dnipro.
The 2nd Separate Mixed Galician Brigade is a brigade of the National Guard of Ukraine concerned with multiple roles including the extraction of Ukrainian personnel from the frontlines, logistical and combat support, maintenance of the public law and order, among other roles. It was established on the basis of the 16th Convoy Brigade in February 1992 as the 2nd Convoy Brigade. Its main headquarters is in Lviv although its units are also stationed in Ternopil, Uzhhorod, Drohobych and Rivne.
The 27th Separate National Guard Regiment is a regiment of the National Guard of Ukraine tasked with the protection of Ukrainian territorial integrity. It was established as the 22nd battalion on the basis of the 3rd battalion of the 27th Pechersk Brigade in 2019. It is headquartered in Chernihiv.
The 40th Separate "Danylo Nechai" Regiment is a regiment of the National Guard of Ukraine tasked with safeguarding prisons, mental asylums, medical facilities, escorting arrested and convicted persons, guarding defendants during court proceedings, providing assistance to the police in maintaining public order and protection of Ukrainian territorial integrity. It was established as the 8th Separate Brigade on the basis of the 481st Convoy Regiment in 1993. It is headquartered in Vinnytsia.
The 13th Separate National Guard Battalion is a battalion of the 40th Regiment of the National Guard of Ukraine tasked with the protection of Ukrainian territorial integrity, maintenance of public order and escorting convicts during court proceedings. It's garrisons are located in Khmelnytskyi and Kamianets-Podilskyi.
The 15th Separate National Guard Battalion is a battalion of the 2nd Galician Brigade of the National Guard of Ukraine tasked with transport and escort of convicts and prisoners as well as the protection of public law and order and the Ukrainian territorial integrity. It was established in 1995 in Crimea but after the capture of its headquarters it was abolished and was reestablished in 2018 in Rivne.
The 2nd Shostkinsky Special State Objects Guard Regiment is a regiment of the National Guard of Ukraine tasked with the protection of strategically important sites especially those in Sumy Oblast. It was established in 1991 on the basis of 467th Special Units Regiment of the Internal Troops of the Soviet Union as a part of the Internal Troops of Ukraine. It is headquartered at Shostka.
The 5th Nuclear Power Plant Defense Battalion is a battalion of the National Guard of Ukraine tasked with CBRN defense, specifically of the Rivne Nuclear Power Plant, and has seen action against Russian forces during the Russian invasion of Ukraine. In its current form, it was established in 1991 and is headquartered at Varash.
Ukraine 
Ministry of Internal Affairs 
National Guard of Ukraine