Nuclear arms race was a key factor in extending the time period of the cold war. The seeds of the hostility between USSR in US began after the end of World War I with the rising of communism in USSR in Stalin rule made it worse.
It was the internal reforms of Mikhail Gorbachev, the last Soviet leader that led to the end of the Cold War
Some of the rights of citizens
Mark brainliest
A. a disagreement between the states over representation in Congress
