The first ever atomic bomb was used.
Soviet Russia established a land blockade around Western Berlin. This forced America and its allies to have to airlift in supplies for the citizens.
NATO is formed.
One of the first of many proxy wars begins between the US and USSR.
The USSR and its allies formed its own defensive alliance.
The Berlin wall is erected isolating Western Berlin.
Russia and America nearly escalated into all out war over the storing of Russian missiles and Americas embargo of Cuba.
Gorbachev would end up being the leader of Russia during the end of the cold war. It is thanks to him and his efforts that it could end.
This treaty was an agreement of both Russia and America to remove all intermediate ranged nuclear missiles.
The Berlin wall falls and Germany becomes one nation again