superpower: A very powerful country that can influence events all over the world.
satellite state: a state that is officially independent but is under heavy political, economic and military control of another country
NATO: abbreviation of North Atlantic Treaty Organisation; military alliance of the USA and its allies
Warsaw Pact: military alliance of the USSR and its satellite states
containment: The US policy of stopping the spread of communism to new countries.
Iron Curtain: The imaginary boundary dividing Europe into communist and non-communist halves.
arms race: A competition between nations to have the most powerful weapons.
space race: competition for supremacy in spaceflight capability especially during the Cold War between the USA and the Soviet Union.
proxy wars: indirect conflicts where superpowers like the US and the USSR fought each other by supporting opposing sides in the civil wars of smaller nations.
Domino Theory:
glasnost: A Soviet policy of being more open and honest about government problems.
perestroika: policy from 1985 of Soviet leader Gorbachev to change the communist planned economy into a free market economy