Question

What two 1949 crisis raised cold war tensions?

Answer 1

On 04 April 1949, NATO was created. 
On 08 June 1949, the nation went through the Red Scare implicating many celebrities as Communists. 
On 29 August 1949, the Soviet Union tested its first nuclear weapon. 
On 01 October 1949, there was the birth of the People's Republic of China.