The Cold War
Lesson 2 of 3 9 min +55 XP

Flashpoints

Berlin, Cuba, and proxy wars.

What you'll learn

  • Describe key Cold War crises
  • Explain what a proxy war is
  • Explain nuclear deterrence
The brink over Cuba

For thirteen days in 1962, missiles in Cuba brought two superpowers to the edge of nuclear war. The Cold War rarely meant direct fighting — instead it flared in flashpoints like Berlin and Cuba and proxy wars fought through others.

Hot moments in a cold war

The superpowers never fought each other directly — the risk of nuclear war was too great — but the Cold War flared in crises and proxy conflicts. Berlin, split between the blocs, became a symbol: blockaded in 1948, then walled off in 1961 to stop East Germans fleeing west.

Thirteen days in 1962

The Cuban Missile Crisis brought the world closest to nuclear war. When the US discovered Soviet missiles in Cuba, a tense standoff followed; both sides ultimately stepped back, a stark lesson in how deterrence could nearly fail.

Elsewhere the rivalry played out through proxy wars — in Korea, Vietnam, Afghanistan, and beyond — where the superpowers backed opposing local sides rather than fighting each other. Deterrence rested on mutually assured destruction: neither could win a nuclear exchange, so neither dared start one.

Simulation · Order the timeline

Click the events from earliest to latest.

0/4 placed

Sequencing events is a core history skill. Practice ordering milestones from earliest to latest.

Lab · Anatomy of a proxy war
  1. Pick one proxy conflict (Korea or Vietnam).
  2. Identify the two local sides and which superpower backed each.
  3. Explain why the US and USSR preferred backing proxies over fighting directly.
  4. State one lasting consequence of the conflict for the region.

What you should see: You dissected how superpower rivalry drove local wars and why direct conflict was avoided.

Knowledge Check

+15 XP / correct

1. A proxy war is one in which…

2. Mutually assured destruction deterred nuclear war because…