The Russian Naval Infantry, often referred to as Russian Marines in the West, operate as the naval infantry of the Russian Navy. Established in 1705, they are capable of conducting amphibious operations as well as operating as more traditional light infantry.
The Eighth Army is a U.S. field army which commands all United States Army forces in South Korea. It is headquartered at the Camp Humphreys in the Anjeong-ri of Pyeongtaek, South Korea. Eighth Army relocated its headquarters from Yongsan to Camp Humphreys in the summer of 2017. It is the only field army in the U.S. Army. It is responsible to United States Forces Korea and United States Army, Pacific.
Marines, or naval infantry, are soldiers who specialise at operating in littoral zones, both on land and at sea. Historically, the main tasks undertaken by marines have included raiding ashore in support of naval objectives, and the boarding of vessels during combat or capture of prize ships. Marines also help maintain discipline and order aboard the ship. In most countries, marines are an integral part of that state's navy.
The Russian Federation holds an unknown number of soldiers in Transnistria, an unrecognized breakaway state internationally recognized as part of Moldova. This Russian military presence dates back to 1992, when the 14th Guards Army intervened in the Transnistria War in support of the Transnistrian separatist forces. Following the end of the war, which ended in a Russian-backed Transnistrian victory and in the de facto independence of the region, the Russian forces stayed in a purportedly peacekeeping mission and reorganized in 1995 into the Operational Group of Russian Forces (OGRF), currently guarding the Cobasna ammunition depot. Some other Russian soldiers also participate in the Joint Control Commission between Moldova, Russia and Transnistria since 1992.
The Ukrainian Ground Forces, also referred to as the Ukrainian army, are the land forces of Ukraine and one of the eight branches of the Armed Forces of Ukraine. They were formed from Ukrainian units of the Soviet Army after Ukrainian independence, and trace their ancestry to the 1917–22 army of the Ukrainian People's Republic.
The 72nd Mechanized Brigade named after theBlack Zaporozhians is a formation of the Ukrainian Ground Forces. It was previously named the 29th Rifle Division and then the 72nd Guards Rifle Division of the Soviet Ground Forces. In 1957, it became a motor rifle division.
The 51st Guards Mechanized Brigade was a formation of the Ukrainian Ground Forces, stationed at Volodymyr in Volyn Oblast, on the border with Poland. The Brigade drew its history from the 15th Guards Rifle Division of World War II, which was converted into the 15th Guards Motor Rifle Division in 1957. The division was renumbered as the 51st Guards Motor Rifle Division in 1965 and awarded the honorific Perekop in honor of the 51st Rifle Division of the Russian Civil War.
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.
Perevalne is a village in Crimea, a disputed territory recognized by a majority of countries as part of Ukraine but administered by Russia as the Republic of Crimea. The village of Perevalne is administered by the Dobre Village Council, which in turn is subordinate to Crimea's Simferopol Raion (district) authorities.
The Separate Coastal Army, also translated to English as Independent Coastal Army, was an army-level unit in the Red Army that fought in World War II. It was established on July 18, 1941, by the order of the Southern Front from the forces of 9th Army’s Coastal Group and was stood up on July 20, 1941.
The Southern Military District is a military district of Russia.
The 32nd Königsberg Army Corps was an army corps of the Soviet Ground Forces and then the Ukrainian Ground Forces. Its Military Unit Number was a/h 44 690, and from 1994 – a/h A-1916.
The 39th Motorized Infantry Battalion "Dnipro-2" was a military formation of the Ukrainian Ground Forces in 2014–2016.
The Territorial Defence Forces are the military reserve component of the Armed Forces of Ukraine.
The 126th Separate Guards Gorlovskaya Twice Red Banner, Order of the Suvorov Coastal Defense Brigade is a formation of the Coastal Defence Troops of the Russian Navy. Its Military Unit Number is 12676. It was granted the "Guards" honorific after suffering heavy losses in an unsuccessful attempt to capture Voznesensk, southern Ukraine, during the 2022 Russian invasion of Ukraine. The brigade is part of the 22nd Army Corps, Coastal Forces of the Russian Black Sea Fleet. The brigade's garrison is located in Perevalne, in the Simferopol region of the Russian-occupied Republic of Crimea.
The Rear Admiral Mykhailo Bilynsky 36th Marine Brigade was formed in 2015 from units withdrawn from the occupied Crimea – 1st and 501st Marine Battalion, which were previously part of Ukrainian 36th Separate Coastal Defense Brigade. The brigade has participated in the War in Donbas since its formation. In February 2022, when Russia invaded Ukraine, the majority of the brigade was located in Mariupol.
The 1st Separate Feodosia Battalion of Marines is a military unit of the marines of Ukraine, which, according to the organizational and personnel structure, is part of the 36th Marine Brigade of the Armed Forces of the Navy Forces of Ukraine. It is located in the city of Mykolaiv, on the Alyaudy Peninsula.
The Rear Admiral Mykhailo Ostrohradskyi 35th Separate Marine Brigade, is a brigade of the Ukrainian Naval Infantry formed on 24 May 2018, based in Dachne, Odesa Oblast.
The 501st Separate Marine Infantry Battalion is a formerly independent Marine battalion that was part of the Ukrainian defense of Crimea and later part of the Ukrainian forces in the Siege of Mariupol, where the unit's commanders switched sides and tricked most of the battalion into surrendering to Russian forces.
Ukraine 
Ukrainian Navy