17 Jul 1941

United States
  • The US Congress held a hearing on the construction of a new building for the US War Department. ww2dbase [Pentagon | Arlington, Virginia | CPC]
28 Jul 1941

United States
  • The US Congress authorized funding for the construction of the future Pentagon building. ww2dbase [Pentagon | Arlington, Virginia | CPC]
2 Sep 1941

United States
  • Franklin Roosevelt officially approved the site for the construction of the future Pentagon building. ww2dbase [Pentagon | Arlington, Virginia | CPC]
11 Sep 1941

United States
1 Jun 1942

United States
  • The design work for the Pentagon building was completed; meanwhile, construction had already been underway since 11 Sep 1941. ww2dbase [Pentagon | Arlington, Virginia | CPC]
10 Jun 1942

United States
  • Under the War Powers Act the US Army took possession of Arlington Hall, a former girls' school, in Virginia, United States as its base for the Signals Intelligence Service. During the war Arlington Hall would concentrate its efforts mainly on decrypting Japanese codes. ww2dbase [Arlington Hall | Arlington, Virginia | AC]
1 Jul 1942

Photo(s) dated 1 Jul 1942
Northwest side of the Pentagon building while under construction, Arlington, Virginia, United States, 1 Jul 1942
24 Dec 1942

Photo(s) dated 24 Dec 1942
General view of the speakers platform of the Pentagon building during the Christmas exercise, Arlington, Virginia, United States, 24 Dec 1942
15 Jan 1943

United States
  • The Pentagon, the new building in Virginia, United States and the future home of the US Department of War, was dedicated. ww2dbase [Pentagon | Arlington, Virginia | CPC]
18 Jun 1945

Photo(s) dated 18 Jun 1945
General Dwight Eisenhower and General George Marshall, Washington National Airport, Arlington, Virginia, United States, 18 Jun 1945
16 Nov 1945

United States
7 Feb 1948

Photo(s) dated 7 Feb 1948
General Dwight Eisenhower swearing General Omar Bradley into office as Chief of Staff of the US Army, Pentagon, Arlington, Virginia, United States, 7 Feb 1948, photo 1 of 3; note US President Harry Truman and Secretary of Army Kenneth Royall in backgroundUS President Harry Truman awarding General Dwight Eisenhower the third Oak Leaf Cluster to the Distinguished Service Medal, Pentagon, Virginia, United States, 7 Feb 1948, photo 1 of 2US President Harry Truman awarding General Dwight Eisenhower the third Oak Leaf Cluster to the Distinguished Service Medal, Pentagon, Virginia, United States, 7 Feb 1948, photo 2 of 2US President Harry Truman, General Dwight Eisenhower, and General Omar Bradley at the Pentagon building moment after Bradley had been sworn in as the Chief of Staff of the US Army, Virginia, United States, 7 Feb 1948
See all photos dated 7 Feb 1948
22 Nov 1949

Photo(s) dated 22 Nov 1949
Omar Bradley, Hoyt Vandenberg, Lawton Collins, and Forrest Sherman at a US Joint Chiefs of Staff meeting at the Pentagon building, Arlington, Virginia, United States, 22 Nov 1949
2 Jan 1951

United States
25 Jul 1951

Photo(s) dated 25 Jul 1951
Senior US military officers saluting as Forrest Sherman
23 May 1958

Photo(s) dated 23 May 1958
Admiral Burke in his Pentagon office, posing with the
10 Feb 1960

Photo(s) dated 10 Feb 1960
General Lemnitzer, Admiral Burke, General Twining, General White, and General Shoup in meeting with other US military leaders at the Pentagon, Arlington, Virginia, United States, 10 Feb 1960
28 Feb 1964

Photo(s) dated 28 Feb 1964
NATO Military Committee chairman General Heusinger meeting with US Secretary of Defense McNamara at the Pentagon, Arlington, Virginia, United States, 28 Feb 1964
25 Sep 1967

Photo(s) dated 25 Sep 1967
Corona satellite image of the Pentagon building, Arlington, Virginia, United States, 25 Sep 1967
1 Jan 1977

United States
  • The United States Army Intelligence and Security Command was created with its headquarters at Arlington Hall, Arlington, Virginia, United States. ww2dbase [Arlington Hall | Arlington, Virginia | CPC]
26 Jun 1986

Photo(s) dated 26 Jun 1986
US Navy Chiefs of Naval Operations: Holloway, Trost, Carney, Hayward, Watkins, Anderson, Zumwalt, McDonald, Burke, and Moorer at the Pentagon, Arlington, Virginia, United States, 26 Jun 1986
19 Oct 1990

Photo(s) dated 19 Oct 1990
US Navy Chiefs of Naval Operations: Trost, Hayward, Zumwalt, Burke, Kelso, Moorer, Holloway, and Watkins at the Pentagon, Arlington, Virginia, United States, 19 Oct 1990
1 Jan 1992

United States
24 Sep 2010

United States

Timeline Section Founder: Thomas Houlihan
Contributors: Alan Chanter, C. Peter Chen, Thomas Houlihan, Hugh Martyr, David Stubblebine
Special Thanks: Rory Curtis




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