The Soviet Union tested their first atomic bomb starting the Arms Race. In 1952 the United States detonated the first hydrogen bomb and The Soviets followed up by exploding their first hydrogen bomb in 1953.
The Korean War
Caused by the spread of Communism The Red Scare resulted in Senator Joe McCarthy accusing multiple people of communism with little to no evidence.
Germany was split into 4 zones with Great Britain, France, US, Soviet Union. On June 24, 1948 The SU blocked entrance into Berlin & the only way in was to fly. The US & GB airlifted over 2.3 billion tons of supplies into Berlin by the end of the blockade on May 12, 1949.
The Berlin Wall
War started along the 38th parallel on June 25, 1950. US & GB joins SK side. SU & C joins NK side. Ended July 17, 1953. Total number of Americans killed during Korean conflict: 40,000
NASA builds Sputnik, the world's first artificial satellite. This starts the U.S-U.S.S.R space race.
Built to keep Western "fascist" from entering East Germany & undermining the socialist state. Makeshift barbed wire & concrete wall. Came down when people came flooding through checkpoints & used hammers/picks to knock off chunks of the wall.