How did the United States react to the Soviet Union�s development of an atomic bomb in 1949?
It initiated the Non-Proliferation Treaty.
It launched a full scale attack on the Soviet Union.
It initiated peaceful negotiations with the Soviet Union.
It began to develop a weapon more powerful than the atomic bomb.
It initiated the Non-Proliferation Treaty.
It launched a full scale attack on the Soviet Union.
It initiated peaceful negotiations with the Soviet Union.
It began to develop a weapon more powerful than the atomic bomb.