Which U.S. president proposed the missile defense plan nicknamed "Star Wars" in 1983?

The Soviet Union's costly 1979 invasion of which country was compared to America's war in Vietnam?

In which U.S. state did Winston Churchill give his famous 1946 Iron Curtain speech?

Which Soviet leader led a period of reform after Stalin's death known as the Thaw?

The fall of the Berlin Wall in 1989 happened in which month?

The Helsinki Accords of 1975 were a landmark agreement focused largely on what?

The SALT I treaty of 1972 was an agreement between the U.S. and the Soviet Union to limit what?

Mikhail Gorbachev's two famous reforms were perestroika and what?

The Cold War idea of Mutually Assured Destruction meant neither side would attack because of what?

The Cold War is generally considered to have ended in 1991 with the collapse of what?