Scientist who oversaw the first successful sustained nuclear chain reaction in Chicago on Dec. 2, 1942.
A GERMAN Physicist who wrote to FDR that the Nazis might try to bomb them so FDR started "Manhattan Project" and succeeded by building the atomic bomb.
Sept 11, 1941
Date that construction on the Pentagon began
Code name given to the development of the US atomic bomb during World War II. Work on the bomb was carried out in great secrecy by a team including US physicists Enrico Fermi and J. Robert Oppenheimer. The first test took place on July 16, 1945, near Alamogordo, New Mexico, and the next month the US Air Force dropped bombs on Japan.
A highly toxic metallic transuranic element. It occurs in trace amounts in uranium ores and is produced in a nuclear reactor.
" War of words and threats" between the US and USSR from 1945-1990. It was a political and economic stuggle between these nations.
President Truman's policy of providing economic and military aid to any country threatened by communism or totalitarian ideology
Winston Churchill's term for the Cold War division between the Soviet-dominated East and the U.S.-dominated West.
Nation that is dominated politically and economically by a more powerful nation
A plan that the US came up with to revive war-torn economies of Europe. This plan offered $13 billion in aid to western and Southern Europe.
Successful effort by the United States and Britain to ship by air 2.3 million tons of supplies to the residents of the Western-controlled sectors of Berlin from June 1948 to May 1949, in response to a Soviet blockade of all land and canal routes to the divided city.
In 1961, the Soviet Union built a high barrier to seal off their sector of Berlin in order to stop the flow of refugees out of the Soviet zone of Germany. The wall was torn down in 1989.
North Atlantic Treaty Organization
NATO-, Created in 1949, this organization, whose members include the US, Canada,and most Western European nations, as well as Turkey a agreed to combine military forces and to treat a war against one as a war against one as a war against all.
International organization founded in 1945 to promote world peace and cooperation. It replaced the League of Nations.
-Soviet Union exploded their first nuclear weapon
-Mao Zedong became the leader of a newly communist China
Mutually Assured Destruction