The Cold War 1945-1991
History

A surface-to-air missile designed to counter ballistic missiles
Anti-ballistic missiles
A surface-to-air missile designed to counter ballistic missiles anti-ballistic missiles. Anti-ballistic missiles are weapons developed during the Cold War to intercept and destroy incoming ballistic missiles before they reach their targets.

The easing of strained relations through verbal communication
Detente
The easing of strained relations through verbal communication. Detente. In history, detente refers to the period during the Cold War when the United States and the Soviet Union sought to reduce tensions and improve their relationship through diplomacy.

When a person is treated unfairly or badly because the person is one of a particular group
Discrimination
When a person is treated unfairly or badly because the person is one of a particular group, it's called discrimination. In History, discrimination is when people have been unjustly mistreated because of their race, gender, or beliefs.

If one country in a region came under the influence of communism, the surrounding countries would follow
Domino theory
If one country in a region came under the influence of communism, the surrounding countries would follow. Domino theory. It was the belief during the Cold War that the spread of communism in one nation would lead to its spread in neighboring countries, like falling dominoes.

An international organizations that were governed by the same set of institutions
European Community
An international organization that were governed by the same set of institutions. European Community. The European Community was a group of countries in Europe that worked together for economic and political cooperation before becoming part of the European Union.

A political slogan for increased government transparency in the Soviet Union
Glasnost
A political slogan for increased government transparency in the Soviet Union glasnost. Glasnost was a policy introduced by Mikhail Gorbachev in the 1980s to promote openness and transparency in government activities.

An economic and social campaign led by the Chinese Communist Party
Great Leap Forward
An economic and social campaign led by the Chinese Communist Party. Great Leap Forward. The Great Leap Forward was an initiative in China during the late 1950s aimed at rapidly transforming the country from an agrarian society into an industrialized one, which unfortunately led to widespread famine and economic disruption.

A monetary measure of the market value of all the final goods and services produced
Gross domestic product
A monetary measure of the market value of all the final goods and services produced. Gross domestic product. In simple terms, gross domestic product GDP is a way to measure a country's economic size and how much it's producing.

Avoids confrontation with large units of enemy troops but instead attacks small units and resources
Guerrilla fighter
Avoids confrontation with large units of enemy troops but instead attacks small units and resources. Guerrilla fighter. A guerrilla fighter uses hit-and-run tactics and ambushes to combat a larger, less-mobile enemy force.

A name given to members of the Communist Party of Kampuchea which ruled Cambodia
Khmer Rouge
A name given to members of the Communist Party of Kampuchea which ruled Cambodia. Khmer Rouge. The Khmer Rouge was a brutal regime that ruled Cambodia from 1975 to 1979, responsible for the deaths of an estimated 1.7 million people.

The most visible spokesperson and leader in the Civil Rights Movement
Martin Luther King Jr
The most visible spokesperson and leader in the Civil Rights Movement, Martin Luther King Jr. Martin Luther King Jr. was a Baptist minister and activist who played a key role in advancing civil rights for African Americans through nonviolent protest.

A large-scale battle between United Nations Command and North Korean forces in 1950
Pusan Perimeter
A large-scale battle between United Nations Command and North Korean forces in 1950. Pusan Perimeter. The Pusan Perimeter was a defensive line where UN forces held off North Korean troops during a crucial early stage of the Korean War.

Separation of people into racial or other ethnic groups in daily life
Segregation
Separation of people into racial or other ethnic groups in daily life. Segregation. Segregation is the enforced separation of different racial groups in a community, often seen in schools, housing, and public spaces, particularly evident in the United States during the 20th century.

A population shift from central urban areas into suburbs
Suburbanization
A population shift from central urban areas into suburbs. Suburbanization. Suburbanization is the process during which people move from cities to live in surrounding residential areas, which grew significantly in the U.S. after World War II.

One of the largest military campaigns of the Vietnam War, launched by forces of the Viet Cong
Tet Offensive
One of the largest military campaigns of the Vietnam War, launched by forces of the Viet Cong, was the Tet Offensive. The Tet Offensive was a major surprise attack against South Vietnam by North Vietnamese forces during the Vietnam War in 1968.

The last President of Czechoslovakia and the first President of the Czech Republic
Vaclav Havel
The last President of Czechoslovakia and the first President of the Czech Republic. Vaclav Havel. Vaclav Havel was a playwright and dissident who became a symbol of the peaceful transition from communism to democracy in Central Europe.

The state protects and promotes the economic and well-being of the citizens
Welfare state
The state protects and promotes the economic and well-being of the citizens. Welfare state. A welfare state is a government system that provides social services like healthcare and financial aid to support its citizens, especially during tough times.