USCIS 128:108. Who was the United States’ main rival during the Cold War?

OpenAI. (2026). WWho was the United States’ main rival during the Cold War?    [AI-generated infographic]. OpenAI.  Edited by Jennifer Gagliardi

The Soviet Union, also called the USSR (Union of Soviet Socialist Republics), was created in 1922 after the Russian Revolution and civil war. It included 15 republics, such as Russia, Ukraine, Belarus, Kazakhstan, Georgia, Armenia, Lithuania, Latvia, and Estonia. The USSR was a very large and diverse country with many ethnic groups, languages, religions, and cultures. Russia was the largest republic, so many people also used the name “Russia” when talking about the Soviet Union.

During World War II, the United States and the Soviet Union fought together against Nazi Germany. However, after the war ended in 1945, tensions quickly grew between the two countries. This period became known as the Cold War.

The Cold War lasted from about 1945 to 1991. It was called a “cold” war because the United States and the Soviet Union did not fight each other directly in a large war. Instead, they competed for power, military strength, science, technology, and influence around the world.

The two countries had very different political and economic systems. The United States supported democracy and capitalism. The Soviet Union supported communism and a one-party government controlled by the Communist Party.

After World War II, the Soviet Union expanded its influence across Eastern Europe. Countries such as East Germany, Poland, Czechoslovakia, Hungary, Romania, Bulgaria, and Albania became communist governments closely connected to Moscow. These countries became known as the Eastern Bloc.

In 1946, British leader Winston Churchill gave a famous speech in which he said an “Iron Curtain” had fallen across Europe. This phrase described the growing division between communist Eastern Europe and democratic Western Europe.

As the Cold War continued, fear and tension increased on both sides. The United States and the Soviet Union built large numbers of nuclear weapons during the arms race. Both countries also tried to spread their influence to other parts of the world.

In 1956, people in Hungary protested against Soviet control during the Hungarian Revolution of 1956. Many Hungarians demanded greater freedom and independence. At first, the protesters made progress, but Soviet military forces entered Hungary and crushed the revolution. Thousands of people died, and many others fled the country.

The Cold War also became a competition in science and technology. In 1957, the Soviet Union launched Sputnik 1, the first artificial satellite in space. Americans were shocked and worried that the Soviet Union was ahead in science and missile technology. This event began the Space Race.

The Berlin Wall was an important symbol of the Cold War. After World War II, Germany and the city of Berlin were divided into eastern and western parts. In 1961, East Germany built the wall to stop people from escaping to West Berlin. The wall separated families and communities for almost 30 years and symbolized the division between communist Eastern Europe and democratic Western Europe.

During the Cold War, the United States and the Soviet Union also became involved in conflicts in other countries, including the Korean War, the Vietnam War, and the Cuban Missile Crisis. In 1962, the Cuban Missile Crisis brought the world very close to nuclear war.

The rivalry between the two countries continued during the 1960s. In 1969, the United States landed astronauts on the moon during the Apollo 11 Moon Landing mission. Many Americans saw this as an important victory in the Space Race.

During the 1980s, communist governments in Eastern Europe began to weaken. Economic problems grew, and many people demanded more freedom and democratic reforms.

On November 9, 1989, East German officials announced that people could cross the border more freely. Crowds gathered at the Berlin Wall, and border guards allowed people to pass. Germans from East and West Berlin celebrated together and began breaking apart the wall.

The Fall of the Berlin Wall became one of the most important symbols of the end of the Cold War.

After the wall fell, East and West Germany moved toward reunification. On October 3, 1990, Germany officially became one country again.

In 1991, the Soviet Union officially dissolved, and the Cold War ended. The former Soviet republics, such as Ukraine, became independent countries.  Former Eastern Bloc countries, such as Hungary, reclaimed their independence, too.

The Cold War shaped world politics, military policy, science, technology, and international relations for nearly half a century.