The South African Navy (SA Navy) is the naval warfare branch of the South African National Defence Force.
The Royal Netherlands Marine Corps is the elite naval infantry corps of the Royal Netherlands Navy, one of the four Armed Forces of the Kingdom of the Netherlands. The marines trace their origins to the establishment of the Regiment de Marine on 10 December 1665, by the then grand pensionary of the Dutch Republic, Johan de Witt and famous Admiral Michiel de Ruyter. It is the second-oldest still-active marine corps in the world.
The United States Naval Special Warfare Command (USNSWC), also known as NAVSPECWARCOM and WARCOM, is the naval component of United States Special Operations Command, the unified command that oversees and conducts the nation's special operations and missions.
Marines are military personnel generally trained to operate on both land and sea, with a particular focus on amphibious warfare. Historically, the main tasks undertaken by marines have included raiding ashore and the boarding of vessels during ship-to-ship combat or capture of prize ships. Marines also assisted in maintaining security, discipline, and order aboard ships. While maintaining many of their historical roles, in modern times, marines also engage in duties including rapid-response operations, humanitarian aid, disaster relief, special operations roles, and counter-terrorism operations. In most nations, marines are an integral part of that state's navy, such as the United Kingdom's Royal Marines; in some countries their marine forces can also instead be part of the land army, such as the French Troupes de Marine; or, more uncommonly, a nation’s marine forces may be an independent military branch such as the United States Marine Corps or the Ukrainian Marine Corps.
The 11th Marine Expeditionary Unit is one of seven Marine Expeditionary Units currently in existence in the United States Marine Corps. The Marine Expeditionary Unit is a Marine Air Ground Task Force with a strength of about 2,200 personnel. The MEU consists of a command element, a reinforced infantry battalion, a composite helicopter squadron and a logistics combat element. The 11th MEU is currently based out of Marine Corps Base Camp Pendleton, California with headquarters in Camp Del Mar.
The United States Marine Corps is organized within the Department of the Navy, which is led by the Secretary of the Navy (SECNAV). The most senior Marine commissioned officer is the Commandant of the Marine Corps, responsible for organizing, recruiting, training, and equipping the Marine Corps so that it is ready for operation under the command of the unified combatant commanders. The Marine Corps is organized into four principal subdivisions: Headquarters Marine Corps, the Operating Forces, the Supporting Establishment, and the Marine Forces Reserve.
The Navy Expeditionary Combat Command (NECC) is an echelon III command of the United States Navy, which serves as the single functional command to centrally manage current and future readiness, resources, manning, training and equipping of the United States Navy's 21,000 expeditionary forces who are currently serving in every theater of operation. The NECC was established in January 2006. NECC is a subordinate command of the Navy's Fleet Forces Command.
The structure of the United States Navy consists of four main bodies: the Office of the Secretary of the Navy, the Office of the Chief of Naval Operations, the operating forces, and the Shore Establishment.
In the United States Navy, the expeditionary strike group (ESG) is a coordinated group of surface ships, aircraft, submarines, and other naval assets. In contrast to carrier strike groups (CSGs), which emphasize air power and are led by a supercarrier, ESGs are strongly suited for amphibious warfare and are led by an amphibious assault ship. The ESG concept was introduced in the early 1990s, based on the Naval Expeditionary Task Force. The U.S. Navy fields nine expeditionary strike groups.
The Operational Diving Division is part of the South African Navy's Maritime Reaction Squadron (MRS) that was formed as the Naval Rapid Deployment Force (NRDF) in 2006.
South Africa currently does not have a marine corps, though in the past it did. It was originally set up as a sub-branch of the South African Navy during the apartheid era, with the primary purpose of protecting the country's harbours (1951-1955). Then it was recreated in 1979 during the South African Border War as 1 Marine Brigade with the aim of serving as marine infantry (1979-1990). Today, the SAN Maritime Reaction Squadron is the closest analogue to a marine corps South Africa has.
The Naval Infantry Corps, also referred to as the Mexican Marines, are the naval infantry force of the Mexican Navy. The main task of the Infantería de Marina is to guarantee the maritime security of the country's ports and external and internal defense of the country. To accomplish these responsibilities, the corps is trained and equipped to take on any type of operations from sea, air and land. The Naval Infantry Corps is additionally responsible for Mexico's naval special operations forces (SOF), managing the Unidad de Operaciones Especiales, itself responsible for, among other units, the Fuerzas Especiales, the Mexican Navy's Tier 1 SOF unit.
The Fleet Command is responsible for the command, operations, readiness, training and force generation of all ships, submarines, aircraft squadrons, diving teams, and shore establishments of the Royal Australian Navy. Fleet Command is headquartered at HMAS Kuttabul in Sydney, and is led by the Commander Australian Fleet (COMAUSFLT), also referred to as Fleet Commander Australia (FCAUST), which is a rear admiral (two-star) appointment.
The Namibian Navy is the maritime warfare branch of the Namibian Defence Force.
The Joint Rapid Reaction Force (JRRF) was a capability concept of the British Armed Forces from 1999 to 2010. It was a pool of specialised units from all three armed services tasked with rapid deployment worldwide at short notice. The force was intended to be capable of mounting operations up to medium scale warfighting. It could be employed nationally, or multinationally under the auspices of NATO, the United Nations or any other coalition.
The Namibian Marines Corps are the marines of Namibia and is part of the Namibian Navy and the Namibian Defence Force.
Fleet Command is the South African Navy's single type command and controls all vessels and units of the South African Navy, besides Naval Headquarters. The commander of Fleet Command is a Rear Admiral and referred to as Flag Officer Fleet (FOF). The post was previously known as Chief of Naval Operations.
The Namibian Special Forces is a special operations command of the Namibian Defence Force responsible for special forces component commands army and marines. The command consists of Namibian Army Commando and Paratrooper, and the Namibian Marine Corps Amphibious Special Operations Unit. The Army Commando specialize in air assault and airborne operations, capture or kill high-value targets, counterterrorism, direct action, hostage rescue, insertion behind enemy lines, executive protection, and special warfare operations, while the Marine Corps Amphibious Special Operations Unit specialize in amphibious warfare, direct action, executive protection, insertion behind enemy lines, maritime counterterrorism and hostage rescue, naval boarding, naval special warfare operations, operating that originate from a river, ocean, swamp and delta, and underwater demolition. The army units receive training assistance from former South African Special Forces (Recces) and the marine corps from the Brazilian Marine Corps. The units regularly participate in Southern African Development Community (SADC) special forces exercises.
The Kenya Special Forces are units tasked with special operations found within the three branches of the Kenya Defence Forces and are under Special Forces Operations Command. The Army has the largest number of these units under the Army Special Operations Brigade (Kenya) containing the 20th Parachute Battalion (20th Paras), 30th Special Forces Battalion (30 SF) and 40th Ranger Strike Force (40 RSF). The Air Force has a Rapid Deployment Squadron (RDS) tasked with retrieving airmen behind enemy lines and it is the most recent addition to Kenya's specialized military units. The Navy has two units under its Special Operations Squadron which are the Clearance Diving Unit (CDU) and the main Special Boat Unit (SBU) formed with American assistance in the mid 2000s. The Special Operations Training School (SOTS) in Gilgil, Naivasha serves as the premier training establishment for all potential special forces operators. Kenyan special forces have been deployed in Southern Somalia, the Frontier counties of Mandera, Wajir and Garissa on the border with Somalia, Boni Forest near the Somali border and Eastern DRC
South Africa 
South African Navy 
South African National Defence Force