The Berlin Blockade was a Soviet attempt to starve West Berlin into submission, which began on June 24, 1948, and lasted until May 12, 1949.

The Truman Doctrine was a policy of providing military and economic aid to countries threatened by communism, which was announced by President Harry S. Truman in 1947.

The dissolution of the Soviet Union on December 26, 1991, is widely regarded as the end of the Cold War.

Leonid Brezhnev was the leader of the Soviet Union from 1964 to 1982.

Richard Nixon was the American president who pursued a policy of détente with the Soviet Union, which aimed to reduce tensions between the two superpowers.

The Strategic Arms Limitation Treaty (SALT I) was signed by the United States and the Soviet Union in 1972 and aimed to limit the number of strategic nuclear weapons possessed by each side.

The Soviet Union invaded Afghanistan in 1979 in response to the assassination of Afghan President Hafizullah Amin.

Ronald Reagan was the American president who launched the Strategic Defense Initiative (SDI) in 1983.

The fall of the Berlin Wall on November 9, 1989, is widely regarded as the beginning of the end of the Cold War.

Mikhail Gorbachev was the Soviet leader who implemented the policy of perestroika, which aimed to restructure the Soviet economy and political system.

Ronald Reagan was the American president who is most closely associated with the policy of glasnost, which aimed to increase openness and transparency in the Soviet Union.

The Strategic Arms Reduction Treaty (START I) was signed by the United States and the Soviet Union in 1991 and aimed to reduce the number of strategic nuclear weapons possessed by each side.

The attempted coup against Mikhail Gorbachev in August 1991 led to the collapse of the Soviet Union.

George H. W. Bush was the American president who declared the end of the Cold War in 1992.

The dissolution of the Soviet Union on December 26, 1991, is widely regarded as the end of the Cold War.