First use of an Atomic Bomb. Began the threat of US nuclear superiority.
China finally became communist. this was a major fear factor toward the US and capitalism. Influenced US so much NSC-68 was created.
USSR successfully test their Atomic Bomb at Semipalatinsk in Kazakhstan. Marks the end of US monopoly and superiority in atomic weapons and a nuclear based foreign policy from the US. Arms race begins.
This is a reaction after the Chinese communist revolution and the USSR having atomic weapons.
President Harry S. Truman receives National Security Council Paper Number 68 (NSC-68). Created with input from the Defence Department, the State Department, the CIA, and other interested agencies; NSC-68 formed the basis for America’s Cold War policy for the next two decades.
NSC-68 recommended that the United States embark on rapid military expansion of conventional forces and the nuclear arsenal, including the development of the new hydrogen bomb. In addition, massive increases in military aid to U.S. allies were necessary as well as more effective use of “covert” means to achieve U.S. goals. The price of these measures was estimated to be about $50 billion; at the time the report was issued, America was spending just $13 billion on defence. It also introduced the idea of "Containment"
Truman signed in 1950 after hesitation due to the outbreak of the Korean War
Significantly more powerful that an Atomic Bomb. US now had a power the USSR did not have.
Soviets now have an H-Bomb alongside the US.