Instruct: Given a question, retrieve relevant passages that answer the question.
Query: When was the United States Army established?
The Continental Army was established by the Continental Congress on June 14, 1775, which is also recognized as the founding date of its successor, the United States Army. On that day, the Continental Congress assumed responsibility for militia regiments that had been raised by the colonies of New Hampshire, Massachusetts, Rhode Island, and Connecticut. These units and others authorized by Congress served in the Siege of Boston and the invasion of Quebec launched in September 1775. With these operations ongoing, Congress voted to authorize a second establishment of the army for 1776.
The United States Air Force (USAF) is the aerial and space warfare service branch of the United States Armed Forces. It is one of the five branches of the United States Armed Forces, and one of the seven American uniformed services. Initially formed as a part of the United States Army on 1 August 1907, the USAF was established as a separate branch of the U.S. Armed Forces on 18 September 1947 with the passing of the National Security Act of 1947. It is the youngest branch of the U.S. Armed Forces, and the fourth in order of precedence. The USAF is the largest and most technologically advanced air force in the world. The Air Force articulates its core missions as air and space superiority, global integrated intelligence, surveillance, and reconnaissance, rapid global mobility, global strike, and command and control.
See Structure of the United States Army for detailed treatment of the history, components, administrative and operational structure and the branches and functional areas of the Army.
The U.S. Army is made up of three components: the active component, the Regular Army; and two reserve components, the Army National Guard and the Army Reserve. Both reserve components are primarily composed of part-time soldiers who train once a month – known as battle assemblies or unit training assemblies (UTAs) – and conduct two to three weeks of annual training each year. Both the Regular Army and the Army Reserve are organized under Title 10 of the United States Code, while the National Guard is organized under Title 32. While the Army National Guard is organized, trained and equipped as a component of the U.S. Army, when it is not in federal service it is under the command of individual state and territorial governors. However, the District of Columbia National Guard reports to the U.S. President, not the district's mayor, even when not federalized. Any or all of the National Guard can be federalized by presidential order and against the governor's wishes.
The U.S. Army is led by a civilian Secretary of the Army, who has the statutory authority to conduct all the affairs of the army under the authority, direction and control of the Secretary of Defense. The Chief of Staff of the Army, who is the highest-ranked military officer in the army, serves as the principal military adviser and executive agent for the Secretary of the Army, i.e., its service chief; and as a member of the Joint Chiefs of Staff, a body composed of the service chiefs from each of the four military services belonging to the Department of Defense who advise the President of the United States, the Secretary of Defense and the National Security Council on operational military matters, under the guidance of the Chairman and Vice Chairman of the Joint Chiefs of Staff. In 1986, the Goldwater–Nichols Act mandated that operational control of the services follows a chain of command from the President to the Secretary of Defense directly to the unified combatant commanders, who have control of all armed forces units in their geographic or function area of responsibility, thus the secretaries of the military departments (and their respective service chiefs underneath them) only have the responsibility to organize, train and equip their service components. The army provides trained forces to the combatant commanders for use as directed by the Secretary of Defense.
By 2013, the army shifted to six geographical commands that align with the six geographical unified combatant commands (COCOM):
The army also transformed its base unit from divisions to brigades. Division lineage will be retained, but the divisional headquarters will be able to command any brigade, not just brigades that carry their divisional lineage. The central part of this plan is that each brigade will be modular, i.e., all brigades of the same type will be exactly the same and thus any brigade can be commanded by any division. As specified before the 2013 end-strength re-definitions, the three major types of ground combat brigades are:
First Army was established on 10 August 1918 as a field army when sufficient American military manpower had arrived in France during World War I. As an element of the American Expeditionary Forces (AEF) in the latter stages of World War I it was the first of three field armies established under the AEF. Serving in its ranks were many figures who later played important roles in World War II. First Army was inactivated in April 1919.
The United States Coast Guard traces its origin to the founding of the Revenue Cutter Service on 4 August 1790 which merged with the United States Life-Saving Service on 28 January 1915 to establish the Coast Guard. The United States Air Force was established as an independent service on 18 September 1947; it traces its origin to the formation of the Aeronautical Division, U.S. Signal Corps, which was formed 1 August 1907 and was part of the Army Air Forces before becoming an independent service as per the National Security Act of 1947. The United States Public Health Service Commissioned Corps was formerly considered to be a branch of the United States Armed Forces from 29 July 1945 until its status as such was revoked on 3 July 1952.
On 28 June 1963, the Turkish Army celebrated the 600th anniversary of its foundation. Back then, the accepted theory was that the Turkish Armed Forces had been founded in 1363, when the Pençik corps (the predecessor of the Janissary corps) had been formed. In the same year, one of the prominent Pan-Turanists, Nihal Atsız, asserted that the Turkish Army had been founded in 209 BC, when Mete Khan of the Xiongnu is thought to have formed an army based on the decimal system. In 1968, Yılmaz Öztuna proposed this theory to Cemal Tural, who was the Chief of the General Staff of the Republic of Turkey at the time. In 1973, when the Turkish Army celebrated the 610th anniversary of its foundation, Nihal Atsız published his claim again. After the 1980 Turkish coup d'état, the Turkish Army formally adopted the date 209 BC as its year of foundation.
When the United States Army Air Forces (USAAF) was founded on 20 June 1941, it included provisions for Air Ground Control Parties to serve with the United States Army at the division, corps, and Army headquarters. The Air Ground Control Parties functions were to regulate bombing and artillery in close conjunction with the ground troops, as well as assess bomb damage. They were thus the first of similar units to try to fulfill the functions of the FAC without being airborne. However, these units were often plagued by turf wars and cumbersome communications between the respective armies and air forces involved. As a result, it could take hours for an air strike requested by ground troops to actually show up.
When the United States Army Air Forces (USAAF) was founded on 20 June 1941, it included provisions for Air Ground Control Parties to serve with the United States Army at the division, corps, and Army headquarters. The Air Ground Control Parties functions were to regulate bombing and artillery in close conjunction with the ground troops, as well as assess bomb damage. They were thus the first of similar units to try to fulfill the functions of the forward air controller (FAC) without being airborne. However, these units were often plagued by interservice rivalry and cumbersome communications between the respective armies and air forces involved. As a result, it could take hours for an air strike requested by ground troops to actually show up.
The U.S. Army currently consists of 10 active divisions and one deployable division headquarters (7th Infantry Division) as well as several independent units. The force is in the process of contracting after several years of growth. In June 2013, the Army announced plans to downsize to 32 active combat brigade teams by 2015 to match a reduction in active duty strength to 490,000 soldiers. Army Chief of Staff Raymond Odierno projected that the Army was to shrink to "450,000 in the active component, 335,000 in the National Guard and 195,000 in U.S. Army Reserve" by 2018. However, this plan was scrapped by the new administration and now the Army plans to grow by 16,000 soldiers to a total of 476,000 by October 2017. The National Guard and the Army Reserve will see a smaller expansion.
Warren AFB is the oldest continuously active military installation within the Air Force, established in 1867 by the United States Army as Fort David Allen Russell. The facility came under United States Army Air Forces control on 1 June 1947, and United States Air Force (USAF) respectively on 18 September 1947 until now.
In March 1946 the US Army established a unit of the US Constabulary and a Headquarters at Kurmärker Kaserne (later renamed Patch Barracks) in Stuttgart. These units of soldiers retrained in patrol and policing provided the law and order in the American zone of occupied Germany until the civilian German police forces could be re-established. In 1948 the Headquarters for all Constabulary forces was moved to Stuttgart. In 2008 a memorial to the US Constabulary was installed and dedicated at Patch Barracks. The US Constabulary headquarters was disbanded in 1950 and most of the force was merged into the newly organized 7th Army. As the Cold War developed US Army VII Corps was re-formed in July 1950 and assigned to Hellenen Kaserne (renamed Kelley Barracks in 1951) where the headquarters was to remain throughout the Cold War.
In September 1947 the combat elements of the Army Air Forces separated from the U.S. Army, forming the United States Air Force. But a few Air Force support functions, such as medical care, remained U.S. Army responsibilities for the next two years. Starting in 1948, the Air Force and the Air Surgeon, Maj. Gen. Malcolm C. Grow (1887-1960), began to convince the U.S. Army and the administration of President Harry S. Truman that the Air Force needed its own medical service. In the summer of 1949, Air Force General Order No. 35 established a medical service with the following officer personnel components: Medical Corps, Dental Corps, Veterinary Corps, Medical Service Corps, Air Force Nurse Corps, and Women’s Medical Specialist Corps.
The role of the Army was fundamentally changed by the upheavals of the early 1990s and after 1994 the Army became part of the new South African National Defence Force. It is now becoming increasingly involved in peacekeeping efforts in southern Africa, often as part of wider African Union operations. The Army is composed of roughly 40,100 regular uniformed personnel, augmented by 12,300 reserve force personnel. The rank/age structure of the army, which deteriorated desperately during the 1990s, is greatly improving through the Military Skills Development (MSDS) voluntary national service system. Through this system, young healthy members are being inducted into the regular and reserve forces every year.
Immediately after the Mexican–American War in 1848, the U.S. Army built Fort Yuma here to protect travelers from Indians raiding the area. It was the center point of conflict in the Yuma War of 1850–53. From 1864–1890, the fort and nearby facilities was the main army base to support the US Army's efforts to control the Indians throughout the greater southwest.
The brigade arrived in Vietnam on 7 May 1965, the first major ground combat unit of the United States Army to serve in the country. Brigadier General Williamson boldly predicted on arrival that his men would defeat the Viet Cong quickly and that they "would be back in Okinawa by Christmas". The 1st Brigade, 101st Airborne Division; the 2nd Brigade, 1st Infantry Division; and the 1st Cavalry Division quickly followed the 173rd into Vietnam, the first of what would eventually be 25 U.S. Army brigades to serve in the country. As larger US Army commands were established in Vietnam, the brigade was assigned to the III Corps and II Corps tactical zone, which they would serve in for the next six years. The brigade was put under the command of II Field Force, Vietnam.
The United States Army maintained a substantial and continuous military presence at the inner German border throughout the entire period from 1945 to after the end of the Cold War. Regular American soldiers manned the border from the end of the war until they were replaced in 1946 by the United States Constabulary, a lightly armed constabulary force responsible for border security. It was disbanded in 1952 after policing duties were transferred to the German authorities. In its place, two dedicated armoured cavalry regiments were assigned to provide a permanent border defence. The 2nd Armored Cavalry Regiment based at Nuremberg and the 14th Armored Cavalry Regiment based at Fulda– later replaced by the 11th Armored Cavalry Regiment – were tasked with monitoring the border using observation posts, ground and air patrols, countering border intrusions and gathering intelligence on Warsaw Pact activities. Unlike their East German counterparts, U.S. soldiers did not stay for more than 30 days on the border, though they carried out regular patrols around the clock using foot and helicopter patrols. They also used a variety of technical measures such as ground surveillance radars to monitor Warsaw Pact troop movements across the border. A rapid reaction force was on constant duty further behind the border to provide backup in an emergency. The American presence on the border provoked political controversy in Germany. During the 1960s the state of Hesse refused to grant U.S. forces land rights to its observation points or allow them to install paved access roads, electricity or telephone lines. It took the view that since there was no legally recognised border, there was no legal reason for their military observation posts to be built along it. By the 1980s the American border presence had become the target of peace activists, who in 1984 blockaded the U.S. Observation Post Alpha with a human chain. The U.S. withdrew from the inner German border in 1991.
The United States Air Force Academy is an undergraduate college in Colorado Springs, Colorado, with the mission of educating and commissioning officers for the United States Air Force. The Academy was established in 1954, entered its first class in 1955, and graduated its first class in 1959. All students hold the Air Force rank of "Cadet." Sports media refer to the Academy as "Air Force"; this usage is officially endorsed. Most cadets are admitted through a congressional appointment system. The curriculum is broad-based but has traditionally emphasized science and engineering. Before the Academy's first graduating class in 1959, the United States Military Academy and United States Naval Academy were the primary sources of officers for the Air Force and its predecessors, the Army Air Corps and Army Air Forces. Though the primary focus of the Academy is for the Air Force, some graduates are given the option of "cross-commissioning" into the United States Army, United States Navy, United States Marine Corps, or United States Coast Guard.
In the modern US Army, about 15% of soldiers are officially "Infantry". The basic training for all new US Army soldiers includes use of infantry weapons and tactics, even for tank crews, artillery crews, and base and logistical personnel.
The United States Marine Corps's Advanced Base Force (Advance Base Force in some references) was a coastal and naval base defense force that was designed to set up mobile and fixed bases in the event of major landing operations within, and beyond, the territorial United States. Established in the beginning of the 20th century, the Advanced Base Force was the United States' first combined task force built on the concept of the Marine Corps' traditional role in expeditionary warfare. The slow development of the advanced base force played a significant role in the controversy over the removal of the ships' guards (Marines on Navy ships) in 1908–1909.
The United States Naval Academy (also known as USNA, Annapolis, or simply Navy) is a four-year coeducational federal service academy adjacent to Annapolis, Maryland. Established on 10 October 1845, under Secretary of the Navy George Bancroft, it is the second oldest of the United States' five service academies, and educates officers for commissioning primarily into the United States Navy and United States Marine Corps. The campus is located on the former grounds of Fort Severn at the confluence of the Severn River and Chesapeake Bay in Anne Arundel County, east of Washington, D.C. and southeast of Baltimore. The entire campus (known to insiders as "the Yard") is a National Historic Landmark and home to many historic sites, buildings, and monuments. It replaced Philadelphia Naval Asylum, in Philadelphia, that served as the first United States Naval Academy from 1838 to 1845 when the Naval Academy formed in Annapolis.
Arlington National Cemetery was established in June 1864 as a cemetery for Union (United States of America) Civil War dead. The first military burial at Arlington (a white soldier, William Henry Christman) was made on May 13, 1864, close to what is now the northeast gate in Section 27. However, formal authorization for burials was not given by Major General Montgomery C. Meigs (Quartermaster General of the United States Army) until June 15, 1864.
With the purchase of its first airplane, built and successfully flown by Orville and Wilbur Wright, in 1909 the United States Army began the training of flight personnel. This article describes the training provided in those early years, though World War I, and the immediate years after the war until the establishment of the United States Army Air Corps Flight Training Center in San Antonio, Texas during 1926. 
The history of aviation training in the United States military began on 8 October 1909, when Wilbur Wright began instructing Lieutenants Frank P. Lahm and Frederic E. Humphreys on Signal Corps Airplane No. 1, which the Army had recently purchased from the Wright brothers. Each of the two men received a little over three hours training before soloing on 26 October 1909.
United States Rangers were originally raised for Tecumseh's War, but they continued to serve against hostile Indians after the United States declaration of war against Great Britain. A total of 17 independent companies were authorized from Kentucky, Ohio, Indiana, Illinois and Missouri. The Rangers were not militia, but formed part of the war establishment of the United States Army. 
In readiness for possible Indian depredations after the Battle of Tippecanoe, the United States Congress established the United States Rangers, January 2, 1812. The act was renewed in 1813, and the number of ranger companies increased several times during the War of 1812. The President of the United States selected which state or territory should have the benefit of raising ranger companies. The Rangers were not militia, but formed part of the war establishment of the United States Army.
The United States Army Marksmanship Unit (USAMU or AMU) is a part of U.S. Army providing small arms marksmanship training for soldiers and enhancing army recruiting. The unit was originally established in 1956 at the direction of president Dwight D. Eisenhower to the mission of winning international competitions, which at the time was dominated by the Soviet Union. At the 1964 Summer Olympics, the United States won seven medals in shooting, of which six were won by Army Marksmanship Unit members; unit members have continued to win medals at subsequent competitions. A 2008 "New York Times" article notes that the unit has "a reputation as the country's premier training school for competitive shooters." The unit has also trained army snipers and assisted in the development of weaponry.
The United States Army Air Corps (USAAC) was the aerial warfare service of the United States of America between 1926 and 1941. After World War I, as early aviation became an increasingly important part of modern warfare, a philosophical rift developed between more traditional ground-based army personnel and those who felt that aircraft were being underutilized and that air operations were being stifled for political reasons unrelated to their effectiveness. The USAAC was renamed from the earlier United States Army Air Service on 2 July 1926, and was part of the larger United States Army. The Air Corps became the United States Army Air Forces (USAAF) on 20 June 1941, giving it greater autonomy from the Army's middle-level command structure. During World War II, although not an administrative echelon, the Air Corps (AC) remained as one of the combat arms of the Army until 1947, when it was legally abolished by legislation establishing the Department of the Air Force.