The United States of America (USA), commonly referred to as the United States (US), America, or simply the States, is a federal republic consisting of 50 states, 16 territories, a federal district, and various overseas extraterritorial jurisdictions. The 48 contiguous states and the federal district of Washington, D.C., are in central North America between Canada and Mexico. The state of Alaska is the northwestern part of North America and the state of Hawaii is an archipelago in the mid-Pacific. The country also has five populated and nine unpopulated territories in the Pacific and the Caribbean. At 3.79 million square miles (9.83 million km2) in total and with around 316 million people, the United States is the fourth-largest country by total area and third largest by population. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The geography and climate of the United States is also extremely diverse, and it is home to a wide variety of wildlife.
Paleo-indians migrated from Asia to what is now the US mainland around 15,000 years ago, with European colonization beginning in the 16th century. The United States emerged from 13 British colonies located along the Atlantic seaboard. Disputes between Great Britain and these colonies led to the American Revolution. On July 4, 1776, delegates from the 13 colonies unanimously issued the Declaration of Independence. The ensuing war ended in 1783 with the recognition of independence of the United States from the Kingdom of Great Britain, and was the first successful war of independence against a European colonial empire. The current Constitution was adopted on September 17, 1787. The first 10 amendments, collectively named the Bill of Rights, were ratified in 1791 and guarantee many fundamental civil rights and freedoms.
Military organisation is the structuring of the armed forces of a state so as to offer military capability required by the national defence policy. In some countries paramilitary forces are included in a nation's armed forces. Armed forces that are not a part of military or paramilitary organisations, such as insurgent forces, often mimic military organizations, or use ad hoc structures.
Military organisation is hierarchical. The use of formalised ranks in a hierarchical structure came into widespread use with the Roman Army. In modern times, executive control, management and administration of military organisations is typically undertaken by the government through a government department within the structure of public administration, often known as a Department of Defense, Department of War, or Ministry of Defence. These in turn manage Armed Services that themselves command combat, combat support and service support formations and units.
The Royal Marine Corps (RM) is the marine corps and amphibious infantry of the United Kingdom of Great Britain and Northern Ireland and forms part of the Naval Service (along with the Royal Navy and associated organisations). The Royal Marines were formed in 1755 as marine infantry for the Royal Navy. However, it can trace its origins back to the formation of "the Duke of York and Albany's maritime regiment of Foot" at the grounds of the Honourable Artillery Company on 28 October 1664.
The Royal Marines are a maritime-focused, amphibious, highly specialised light infantry force of commandos. They are capable of deploying at short notice in support of Her Majesty's Government's military and diplomatic objectives overseas. The Royal Marines are organised into a light infantry brigade (3 Commando Brigade) and a number of separate units including the Special Boat Service, 1 Assault Group Royal Marines, Fleet Protection Group Royal Marines (previously the Comacchio Group), and a company within the Special Forces Support Group. The Corps operates in all environments and climates, though particular expertise and training is spent on amphibious warfare, arctic Warfare, mountain warfare, expeditionary warfare, Rapid Reaction and supporting Special Forces.
The Pakistan Marines (Urdu: پا ک ميرِينز; English IPA: pɑkʰ məriːniz or/ simply Marines; reporting name PM), is an expeditionary and naval warfare uniform service branch of Pakistan Armed Forces that consists of active duty high-ranking officers and personnel of the Pakistan Navy. The Pakistan Marines are responsible for providing force projection from the sea, using the mobility of the Pakistan Navy to rapidly deliver combined-arms task forces. Established in 1990, it is estimated about 2,000 active-duty personnel from the Navy, with plans to grow to brigade strength by 2015.
In a military leadership structure, the Marines are the component of Pakistan Navy, often working closely with the Navy for training, executing expeditionary operations and logistics purposes. The Marines are not the separate branch but a part of Pakistan Navy. The Marines were first formed as an amphibious battalion on 1 June 1971, in East-Pakistan as naval infantry to execute operations; however after producing poor performance in 1971 war with India, the Marines were disbanded from their service in 1974. In 1990, it was re-established by Commander Obaidullah since then it has been a part of Navy, often conducting operations with the Pakistan naval forces.
Army warrant officer
Marine Corps officer
Marine Corps warrant officer
Marine Corps enlisted
Navy warrant officer
Air Force officer
Air Force enlisted
Coast Guard officer
Coast Guard warrant officer
Coast Guard enlisted
The United States Armed Forces are the military forces of the United States of America. They consist of the Army, Navy, Marine Corps, Air Force, and Coast Guard. The U.S. has a strong tradition of civilian control of the military. The President of the United States is the military's overall head, and helps form military policy with the U.S. Department of Defense (DoD), a federal executive department, acting as the principal organ by which military policy is carried out. The DoD is headed by the Secretary of Defense, who is a civilian and Cabinet member. The Defense Secretary is second in the military's chain of command, just below the President, and serves as the principal assistant to the President in all DoD-related matters. To coordinate military action with diplomacy, the President has an advisory National Security Council headed by a National Security Advisor. Both the President and Secretary of Defense are advised by a seven-member Joint Chiefs of Staff, which includes the head of each of the Defense Department's service branches as well as the chief of the National Guard Bureau. Leadership is provided by the Chairman of the Joint Chiefs of Staff and the Vice Chairman of the Joint Chiefs of Staff. The Commandant of the Coast Guard is not a member of the Joint Chiefs of Staff.
An air force, also known in some countries as an air army, is in the broadest sense, the national military organization that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an army, navy or other branch. Typically, air forces are responsible for gaining control of the air, carrying out strategic and tactical bombing missions and providing support to surface forces.
The term "air force" may also refer to a tactical air force or numbered air force, which is an operational formation either within a national air force or comprising several air components from allied nations. Air forces typically consist of a combination of fighters, bombers, helicopters, transport planes and other aircraft.