During the 1960s, which crisis highlighted how close the United States and the Soviet Union could come to nuclear war and influenced arms-control agreements?

• A. The Cuban Missile Crisis
• B. The Arab-Israeli War
• C. The Sino-Soviet split
• D. The Cuban Airlift

Answer: (A)

The Cuban Missile Crisis illustrates how quickly a confrontation could escalate into a nuclear standoff and why it pushed the two superpowers to seek remedies beyond mere deterrence. In October 1962, U.S. intelligence revealed Soviet missiles in Cuba, bringing the world to the edge of nuclear war as Washington demanded removal and imposed a naval quarantine. After tense diplomacy, the crisis ended with the Soviet Union agreeing to withdraw the missiles in exchange for the United States pledging not to invade Cuba and a secret U.S. move to remove missiles from Turkey. That hair-trigger tension exposed how misreadings, miscommunications, or rapid steps could spark catastrophe, making clear the need for direct crisis communication and restraint.

The urgency of avoiding another such flare helped drive concrete arms-control steps. A direct hotline between Washington and Moscow was established to shorten the gap between misinterpretation and response. The Limited Test Ban Treaty of 1963 followed, prohibiting atmospheric, outer-space, and underwater nuclear tests and reducing one major flashpoint of escalation. These measures, along with subsequent negotiations, showed that both sides could curb the arms race through verifiable agreements, reshaping how they managed strategic risk going forward.