that the communist would take over the American government (@p3x )
The US .
The Soviet Union successfully tested its first atomic bomb in 1949.
1945 (not including testing)
Once the uranium and the plutonium were properly understood, the bombs were created and in the testing they knew they got the atomic bomb.
The USSR tested its first nuclear weapon in 1949.
The Soviet Union tested their first atomic bomb in 1949.
The US .
yes
The Soviet Union successfully tested its first atomic bomb in 1949.
Japan was negotiatin with the Soviet Union as the first atomic bomb was dropped.
The Rosenbergs were involved in the Manhattan Project which designed and made the first atomic bomb. They spied for the Soviet Union and passed the information to the Soviet Union on how to make an atomic bomb. They were caught and were executed for spying. With the breakup of the Soviet Union, the great value of their spying to the Soviet Atomic Bomb program was revealed.
1945 (not including testing)
The testing of the world's first atomic bomb
Once the uranium and the plutonium were properly understood, the bombs were created and in the testing they knew they got the atomic bomb.
16th July 1945 was the first atomic explosion, at the White Sands Testing Facility near Alamogordo, New Mexico, USA.
The USSR tested its first nuclear weapon in 1949.
The USSR successfully detonates its first atomic bomb at a remote test site at Semipalatinsk in Kazakhstan code named "First Lightning ."