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The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States between the Union [e] ("the North") and the Confederacy ("the South"). The Confederacy had been formed by states that had seceded from the Union. The central conflict leading to the war was the dispute over whether slavery ...
This is a list of wars and rebellions involving the United States of America. Currently, there are 108 wars on this list, 4 of which are ongoing. 11 major wars include the American Revolutionary War, the War of 1812, the Indian Wars (which encompasses numerous armed conflicts), the Mexican–American War, the American Civil War, the Spanish-American War, World War I, World War II, the Cold War ...
The 2012 Benghazi attack was a coordinated attack against two United States government facilities in Benghazi, Libya, by members of the Islamic militant group Ansar al-Sharia .
List of ongoing armed conflicts. Map of ongoing armed conflicts (number of combat-related deaths in current or previous year): Major wars (10,000 or more) Wars (1,000–9,999) Minor conflicts (100–999) Skirmishes and clashes (1–99) The following is a list of ongoing armed conflicts that are taking place around the world.
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The Pentagon building spans 28.7 acres (116,000 m2), and includes an additional 5.1 acres (21,000 m2) as a central courtyard. Starting with the north side and moving clockwise, its five façade entrances are the Mall Terrace, the River Terrace, the Concourse (or Metro Station), the South Parking, and the Heliport.[citation needed] On the north side ...
Background
Until the Pentagon was built, the United States Department of War was headquartered in the Munitions Building, a temporary structure erected during World War I along Constitution Avenue on the National Mall. The War Department, which was a civilian agency created to administer the U.S. Army, was spread out in additional temporary buildings on the National Mall, as well as dozens of other buildings in Washington, D.C., Maryland and Virginia. In the late 1930s, during the Great Depression and f...
Planning
Government officials agreed that the War Department building, officially designated Federal Office Building No 1, should be constructed in Arlington County, Virginia, across the Potomac River from Washington, D.C. Requirements for the new building were that it be no more than four stories tall, and that it use a minimal amount of steel to reserve that resource for war needs. The requirements meant that, instead of rising vertically, the building would be sprawling over a large area. Possible...
Construction
Contracts totaling $31,100,000 (equivalent to $497 million in 2023) were finalized with McShain and the other contractors on 11 September 1941, and ground was broken for the Pentagon the same day. Among the design requirements, Somervell required that the structural design accommodate floor loads of up to 150 psi (1,000 kPa), in case the building became a records storage facility after the end of the war. A minimal amount of steel was used as it was in short supply. Instead, the Pentagon was...
Protests
During the late 1960s, the Pentagon became a focal point for protests against the Vietnam War. A group of 2,500 women, organized by Women Strike for Peace, demonstrated outside Secretary of Defense Robert S. McNamara's office at the Pentagon on 15 February 1967. In May 1967, a group of 20 demonstrators held a sit-in outside the Joint Chiefs of Staff's office, which lasted four days before they were arrested. In one of the better known incidents, on 21 October 1967, some 35,000 anti-war protes...
September 11 attacks
On September 11, 2001, coincidentally the 60th anniversary of the Pentagon, five al-Qaeda affiliated hijackers took control of American Airlines Flight 77, en route from Washington Dulles International Airport to Los Angeles International Airport, and deliberately crashed the Boeing 757 airliner into the western side of the Pentagon at 9:37 am EDT as part of the September 11 attacks. The impact of the plane severely damaged the outer ring of one wing of the building and caused its partial col...
View of the Pentagon from the northwest during the building's construction in July 1942A view of the Pentagon from the southwest with the Potomac River and Washington Monumentin background in 1988Aftermath at the Pentagon from the September 11 attacksA September 11 anniversaryillumination at the Pentagon in 2007Popular Mechanics, March 1943, "Army's Giant Five-by-Five"one of earliest World War II articles on the PentagonA map of the United States showing its 50 states, federal district and five inhabited territories. Alaska, Hawaii, and the territories are shown at different scales, and the Aleutian Islands and the uninhabited northwestern Hawaiian Islands are omitted from this map. This article is part of a series on.
This article is part of a series on the History of the United States Timeline and periods Prehistoric and Pre-Columbian Era until 1607 Colonial Era 1607–1765 1776–1789 American Revolution 1765–1783 Confederation Period 1783–1788 1789–1815 Federalist Era 1788–1801 Jeffersonian Era 1801–1817 1815–1849 Era of Good Feelings 1817 ...
