The Main Directorate of Intelligence of the Ministry of Defence of Ukraine, also known in English as the Defense Intelligence of Ukraine (DIU), is the military intelligence service of the Ukrainian government. It is an agency of the Ministry of Defence, not the General Staff of the Armed Forces of Ukraine.
The Ukrainian Marine Corps, also known simply as the Ukrainian Marines, is the maritime land force service branch of the Armed Forces of Ukraine since 2023, responsible for conducting expeditionary and amphibious operations. From its modern foundation in 1993 up to 2023 it constituted part of the Coastal Forces of the Ukrainian Navy. It is used as a component part of amphibious, airborne and amphibious-airborne operations, alone or in coordination with formations and units of the Ground Forces in order to capture parts of the seashore, islands, ports, fleet bases, coast airfields and other coast objects from the enemy. It can also be used to defend naval bases, vital shoreline areas, separate islands and coast objects, and security of hostile areas.
Operational Command North is a command of the Ukrainian Ground Forces in northern Ukraine. It was formed in 2013 from the Western Operational Command and Territorial Directorate North by reforming the 13th Army Corps.
Operational Command East is a formation of the Ukrainian Ground Forces in eastern Ukraine. Its headquarters is currently located in Dnipro.
Operational Command West is a formation of the Ukrainian Ground Forces in western Ukraine. Its headquarters is located in Rivne.
10th Naval Aviation Brigade is the sole Brigade of the Ukrainian Naval Aviation established in 2004 by the merger of 9th Mixed Marine Aircraft Squadron, 316th Separate Marine Aviation Squadron and the 555th Naval Helicopter Regiment. It operates a vast arsenal of fixed-wing, rotatory and unmanned aircraft. It was previously garrisoned at Novofedorivka but is currently based at Mykolaiv.
The siege of Southern Naval Base lasted from 3 March 2014 until its definitive capture on 27 March 2014. The action began with the blockade of Donuzlav bay by the Russian missile cruiser Moskva. The Russian Navy later scuttled the Russian anti-submarine ship Ochakov and several smaller vessels in the mouth of the bay to prevent Ukrainian ships from sailing to open sea and reaching the Ukrainian fleet in Odesa. As a result, 13 Ukrainian ships were bottled up and eventually captured by Russia in Donuzlav bay. The blockade ended when the Russian Navy seized the last ship under the Ukrainian flag in Crimea, the minesweeper Cherkasy.
Fights on the Ukrainian–Russian border in 2014, also famous as "Operation to restore the state border", "Battle at the border", Battle in sector D , – an episode of the war in eastern Ukraine, the battle of anti-terrorist operation forces against illegal armed groups supported by Russian artillery in the border areas of Donetsk and Luhansk regions during summer campaign in Donbass. Fighting broke out in Sector D of the anti-terrorist operation during the "operation to restore the state border" during June–August 2014. The main task of the Anti-Terrorist Operation Forces was to restore control over the section of the state border Izvaryne – Kumachovo and to cut the routes for illegal armed groups.
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.
Hola Prystan (P241) is a Project R1415 anti-sabotage boat of the Ukrainian Navy. Built in 1986, she has been in Ukrainian Navy service since 1997.
Oleksandr Volodymyrovych Mostovyi is a Ukrainian military commander, a colonel. He is the commander of the 831st Tactical Aviation Brigade. He is a participant of the Russian-Ukrainian war and distinguished himself during the Russian invasion of Ukraine in 2022. He is a 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.
73rd Naval Special Operations Center "Chieftain Antin Holovaty" or the Special Operations Center South is the naval component of the Ukrainian Special Operations Forces. It joined the Ukrainian Navy on 1992 and became a part of Special Operations Forces in 2016, becoming the sole naval component of SOF. It is headquartered at Ochakiv.
72nd Psychological and Information Warfare Center is a unit of the Ukrainian Special Operations Forces concerned with psychological warfare and informational warfare. It was established in 2007 as a part of the Ukrainian Navy and was headquartered at Sevastopol till it was captured by Russia in 2014. It became a part of the SOF in 2016 and is currently headquartered at Kyiv.
The 28th Naval Auxiliary Division is an Auxiliary division of the Ukrainian Navy, based at Western Naval Base. It was originally established in 2014 as the 28th Separate Search and Rescue Division and was formerly stationed at Sevastopol. It is mainly concerned with providing support to combatant ships of the Ukrainian Navy.
30th Surface Ships Division formerly known as 1st Naval Surface Ship Brigade is a NATO certified division of the Ukrainian Navy. It is a combat active unit and is amongst one of the most highly active units amongst the Ukrainian Navy. It's flagship Hetman Sahaidachny is also the flagship of Ukrainian Navy. It was established in 1993 and is currently based at the Western Naval Base.
406th Separate Artillery BrigadeCorporal General Oleksiy Almazov is a brigade of the Ukrainian Marine Corps. It was established in 1976 as a part of the Soviet Armed Forces and was transferred to Ukraine following its independence. It was originally a part of the Ukrainian Navy and became a part of the Marine Corps after its formation. It is currently based at Mykolaiv.
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.
137th Separate Marine Battalion is a bataillon of the 35th Marine Brigade. It was established in late 2015 as a part of the Ukrainian Navy but was transferred to the Ukrainian Marine Corps in 2018. Internationally, it's also a part of the Balkan Battlegroup of the European Union. It is headquartered at Dachne, Odesa Oblast.
37th Separate Communications Regiment is a Regiment of the Ukrainian Navy concerned with communications and connections between different units of the Ukrainian Navy. It was established in 1999 in Crimea but after Russian invasion of Crimea, it was relocated to Odessa.
Ukraine 
Ukrainian Navy 
