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The United States Space Force (USSF) is the United States Armed Forces' space force and is the newest military branch. Originally established in 2019, it traces its history through Air Force Space Command and the Western Development Division to 1954. The United States Space Force is the principal space service, responsible for space warfare ...
The United States operates a global network of military installations and is by far the largest operator of military bases in the world, with locations in dozens of nations on every continent, with 38 "named bases" having active-duty, US National Guard, reserve, or civilian personnel as of 30 September 2014.
The Pentagon, headquarters of the United States Department of Defense.. The United States Department of Defense (DoD) has a complex organizational structure.It includes the Army, Navy, the Marine Corps, Air Force, Space Force, the Unified combatant commands, U.S. elements of multinational commands (such as NATO and NORAD), as well as non-combat agencies such as the Defense Intelligence Agency ...
The chain of command leads from the president (as commander-in-chief) through the secretary of defense down to the newest recruits. The United States Armed Forces are organized through the United States Department of Defense, which oversees a complex structure of joint command and control functions with many units reporting to various commanding officers.
The United States Navy ( USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the world's most powerful navy and the largest by tonnage, at 4.5 million tons in 2021 [9] and in 2009 an estimated battle fleet tonnage that exceeded the next 13 navies combined. [10]
The United States Army ( USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution. [15] The Army is the oldest branch of the U.S. military and the most senior in order of precedence. [16]
The United States Air Force ( USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. [12] Originally created on 1 August 1907, as a part of the United States Army Signal Corps, the USAF was established as a separate branch of the United States Armed Forces in 1947 with ...
The military of the United States is deployed in most countries around the world, with approximately 160,000 of its active-duty personnel stationed outside the United States and its territories. [1] This list consists of deployments excepting active combat deployments, including troops in Iraq, Syria, Yemen, and Somalia. [2]