Marines
Several authors have written a number of articles in various Canadian professional military journals since 2019 proposing/discussing the creation of a Canadian Arctic amphibious capability, including the adaption of one to three Canadian Army infantry battalions to provide the required landing forces.

Chile: The Chilean Marine Corps is a branch of the Chilean Navy. Specialized in amphibious assaults, the corps is built around four detachments based along Chile's long coasts at Viña del Mar, Talcahuano, Punta Arenas, and Iquique. There are also a number of independent companies and platoons, for security protection at naval bases, other shore installations and the Ministry of Defense. The Viña del Mar and Talcahuano detachments contribute to the Amphibious Expeditionary Brigade (Brigada Anfibia Expedicionaria). There is as a group of Marine Infantry commandos (Grupo de Comandos IM), which together with the group of naval tactical divers (Agrupación de Buzos Tácticos) are part of the Navy's Special Operations Command (Comando de Operaciones Especiales).

China: The People's Liberation Army Navy Marine Corps (PLANMC) is a service branch of the PRC navy and is therefore under the command of the PLAN Headquarters. The PLANMC are divided into six brigades. The majority of the PLANMC's personnel is based in the South China Sea.

Colombia: The Colombian Marine Corps is a part of the Colombian Navy. The modern marine corps dates from the establishment of two rifle companies in 1936. While remaining a small force, the corps saw service during the civil war between Conservatives and Liberals of 1946–58 and provided volunteers for service in the Korean War. By the 1960s it had been expanded to a battalion of marine infantry plus five independent companies.

Croatia: Croatian Navy formed naval infantry companies during the Croatian War of Independence (1991–5), esp. on islands (Hvar: Zvir Company, Korčula: Mixed Detachment etc.) and one in Pula (Vanga Company, saw action in relieving Siege of Dubrovnik and in Operation Maslenica). As they were all dissolved during 2000s, a new naval infantry company, ~160-strong (Satnija mornaričko-desantnog pješaštva) was formed again in 2018 as a part of the Navy Flotilla and is located in Ploče.

Cuba: The Cuban Revolutionary Navy (Marina de Guerra Revolucionaria or MGR) maintains a small marine battalion called the Desembarco de Granma.

Denmark: The Guard Hussar Regiment (Gardehusarregimentet or GHR) maintains a marine squadron (only by name) which is the Marine Squadron  or 4th Training Squadron based in Almegårds Kaserne on the Baltic island Bornholm. The squadron is a part of the 3rd Reconnaissance Battalion and trains conscripts.

Ecuador: The Ecuadorian Navy maintains a Naval Infantry Corps (Cuerpo de Infantería de Marina) headquartered in Guayaquil. Formed on 12 November 1962, it is organised into two security battalions, one in the Amazon River area and the other on the Pacific coast. There is also a commando battalion based on the Galápagos Islands.

Egypt: The 111th Independent Mechanized Brigade (formerly the 130th Marine Amphibious Brigade) of the Egyptian Army can conduct amphibious assault operations. There is also the 153rd Commando Group with three Marine Commandos Battalions (515th, 616th, 818th) controlling 12 Marine Commandos Companies.

El Salvador: The El Salvador Navy included two 600-man Marine Infantry Battalions (Batallon de Infanteria de Marina or BIM), and a 300-man Naval Commando Force. The BIMs were located at La Unión and Usulután. The Salvadoran Marine Corps uses green pixelated and green woodland uniforms.

Finland: The Finnish Nyland Brigade (Nylands Brigad) in Ekenäs is the home of the Finnish Coastal Jaegers — the Kustjägarna (in Swedish) / Rannikkojääkärit (in Finnish). The Brigade is part of the Finnish Navy, and the only Swedish-speaking unit within the Finnish Defence Forces.

France: The Fusiliers Marins (Naval Fusiliers) and Commandos Marine (Naval Commandos) are naval personnel. The fusiliers marins protect vessels and installations, provide the navy with military training, augment boarding-landing parties and support operations of the Commandos Marine. The Commandos Marine (Naval Commandos) are a seven company Commando formation whose roots can be traced to the Second World War. The Commandos Marine have evolved to be broadly comparable to the British Special Boat Service, with whom they exchange officers.
Troupes de Marine ("Marine Troops"), are a branch of the French Army, renamed from the Troupes Coloniales who served in France's overseas territories to maintain or expand French interests. The modern Troupes de Marine have units permanently based in Africa, in addition they man bases in the French Overseas Territories. They now provide the ground combat elements of French amphibious task forces and are specifically trained for that purpose. The 9th Marine Brigade (9e Brigade Légère Blindée de Marine (9 BLBMa)) is twinned with the 3 Commando Brigade of the Royal Marines, organising the exchange of officers and sharing training and exercises.

Germany: The Sea Battalion (Seebataillon) is a land formation of the German Navy. It was formed in Eckernförde on 1 April 2014, succeeding the Naval Protection Force.

Greece: The Greek 32nd Marine Brigade "Moravas" and the Amphibious Raider Squadrons (known as MAK) of the 13th Special Operations Command are amphibious infantry and maritime operations units maintained by the Hellenic Army and supported by the Hellenic Navy. The brigade traces its origin to 1919 as the 32nd Infantry Regiment but was only in 1967 when it was reorganised and designated as a naval infantry unit under the banner of the 32nd Marines Regiment.

Honduras: The Honduran Navy established at least one 600-man marine infantry battalion (Batallón de Infantería de Marina or BIM) in 1982.

India: The Indian Army has amphibious units under the Jodhpur-based corps. The Marine Commando Force (MARCOS) is the special operation forces of Indian Navy.

Indonesia: In Indonesia, the main amphibious warfare force and naval infantry of the Indonesian National Armed Forces is the Indonesian Marine Corps of the Indonesian Navy. The Marine commandant reports to the Chief of Staff of the Indonesian Navy.

Iran: Since the Iranian Revolution in 1979, the number of marines in the Islamic Republic of Iran Navy (IRIN) has expanded to 2,600 personnel, in two marine brigades, each composed of three battalions. Their mission is to provide security throughout the Arabian Sea and free waters, as well as securing routes for Iranian ships in the Gulf of Aden.
The Navy of the Islamic Revolutionary Guard Corps (IRGCN) maintains several units that may perform marine-type functions. It also has a Takavar naval commando battalion, called Sepah Navy Special Force (SNSF). They are tasked with providing security in the Persian Gulf and Strait of Hormuz, as well as conducting anti-piracy missions to assist Iranian ships.

Iraq: The Iraqi Navy is a small force with 1,500 sailors and 800 marines designed to protect the shoreline and inland waterways from insurgent infiltration. The navy will have coastal patrol squadrons, assault boat squadrons and a marine battalion. The force will consist of 2,000 to 2,500 sailors by 2010.

Israel: Upon its revival in the 1980s the Givati Brigade was intended to serve as the amphibious infantry brigade of the Israel Defense Forces, but this was not put into effect. Currently the 35th Paratroopers Brigade is the only brigade that has amphibious abilities as part of its Depth Warfare arsenal together with parachuting and air assault.

Italy: The San Marco Marine Brigade is the marine infantry unit of the Italian Navy (Marina Militare). It traces its roots back to 1550 with the formation of Fanti da Mar in the Republic of Venice.
The Serenissima Regiment is the amphibious infantry unit of the Italian Army (Esercito Italiano). Its soldiers are called Lagunari and they are the Italian Army Marines.

Japan: Japan Ground Self-Defense Force
Amphibious Rapid Deployment Brigade – Japanese marines tasked with offensive amphibious assault to retake islands.
The unit was first formed in 2018 and was the first unit of its kind created since the demilitarisation of Japan after World War II.

North Korea: The Korean People's Army's Light Infantry Training Guidance Bureau has two or more amphibious light infantry/sniper brigades. These brigades are believed deployed to Wonsan on the east coast and Namp'o and Tasa-ri on the west coast. In organization and manpower, they are reduced versions of the regular light infantry brigades with a total strength of approximately 5,000 men organized into ten battalions. Each battalion has about 400 men organized into five companies each.