The Arms Race and the Space Race

Two Camps in Uniform

By the early 1950s the Cold War had hardened into two armed alliances. In April 1949 twelve Western states — led by the USA, Britain and France — signed the North Atlantic Treaty, creating NATO. The treaty’s Article 5 promised that an attack on one member would be treated as an attack on all. The Soviet Union watched the treaty signed, then waited. When West Germany was admitted to NATO in May 1955, Moscow responded within days by gathering its East European satellites into the Warsaw Pact. Europe was now formally split between two opposing military blocs.

Key Fact

NATO was founded in April 1949 by twelve Western states. The Warsaw Pact followed in May 1955, five days after West Germany joined NATO. Each alliance committed members to defend any other member that was attacked.

The Arms Race Begins

In August 1945 the United States was the only nuclear power. That monopoly lasted four years. In August 1949 the Soviet Union tested its first atomic bomb, codenamed ‘First Lightning’ — years earlier than US intelligence had predicted. Three years later, in November 1952, the United States tested the first hydrogen bomb, hundreds of times more powerful than the Hiroshima weapon. The Soviets answered in August 1953 with their own thermonuclear device. Each new weapon shortened the gap between the two sides and pushed both governments to spend more.

By the late 1950s the focus shifted from the bombs themselves to how to deliver them. Long-range bombers had been the threat in 1949; by 1957 the threat was the ICBM — a missile that could cross continents in roughly thirty minutes. The USA also developed the Polaris submarine missile in 1960, hiding a second-strike force under the oceans where it could not easily be destroyed.

Sputnik Shocks the West

On 4 October 1957 the Soviet Union launched Sputnik 1, the first artificial satellite. It was small — about the size of a beach ball — but its steady radio beep, audible on amateur receivers across the world, carried a heavier message: the Soviet rocket that put it into orbit could equally carry a warhead to New York. A month later, Sputnik 2 carried the dog Laika into space. The American public, used to assuming US technological supremacy, was deeply shaken. Congress poured money into education and research; the result, in 1958, was the founding of NASA.

On 12 April 1961 the Soviet cosmonaut Yuri Gagarin became the first human in space, completing one orbit of the Earth aboard Vostok 1. Khrushchev paraded him as proof that communism was outpacing capitalism. Three weeks later the United States managed only a fifteen-minute suborbital flight by Alan Shepard. President Kennedy, taking office in January 1961, faced a Cold War in which the Soviets had the lead in spectacular firsts.

In May 1961 Kennedy responded with the boldest pledge of the era: the United States would land a man on the Moon and return him safely to Earth before the decade was out. The political logic was as important as the technical: a moon landing would let the West reclaim the symbolism the Soviets had captured with Sputnik and Gagarin.

The Race to the Moon

The Soviet lead narrowed through the mid-1960s. The Americans matched and then surpassed Soviet milestones — the first spacewalk by Alexei Leonov in March 1965 was answered by the Gemini programme; the first orbit of the Moon was achieved by Apollo 8 in December 1968. On 20 July 1969, with an estimated 600 million people watching live, Neil Armstrong stepped from Apollo 11’s lunar module onto the Moon’s surface. The Soviet crewed lunar programme, dogged by technical failures and the death of its chief designer Sergei Korolev in 1966, never reached the Moon.

The Apollo programme alone cost roughly $25 billion in 1960s money — about $150 billion today. The Soviet space budget, harder to calculate, took an even larger share of a much smaller economy. Yet the moon landings did not end the Cold War. Both sides still pointed thousands of warheads at each other; the Berlin Wall still stood; the Vietnam War was still raging. What the space race did achieve was the principle that the two superpowers competed through symbols and prestige as much as through weapons — a principle that would shape the move toward détente in the early 1970s. The arms race kept its own momentum: by 1970 the United States was deploying multiple-warhead missiles known as MIRVs, allowing one rocket to attack several cities at once. The Soviet Union followed within a few years. Each step made arms control harder, because the count that mattered was no longer rockets but warheads, and the warheads were getting cheaper to produce. By 1972 both sides held more than 1,500 strategic missiles each, far more than military planning required.