History · GCSE · The 20th-Century World

Yalta, Potsdam and the end of the wartime alliance

gcse-hist-1bc-1-1Free0:37Heddy Score 2 of 7, below the standard

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What you need to know

  • At Yalta and Potsdam in 1945 the Allies agreed to divide Germany and Berlin into four zones.
  • Stalin wanted a buffer of friendly states to protect the USSR from future invasion.
  • Communism and capitalism were rival beliefs, so trust broke down once Hitler was beaten.
  • The American atom bomb made Stalin more suspicious of the West.

In this clip

0:52–1:29Yalta, Potsdam and the end of the wartime alliancegcse-hist-1bc-1-1
1:29–2:06The Truman Doctrine and the Marshall Plangcse-hist-1bc-1-2b
2:06–2:38The Berlin Blockade and Airliftgcse-hist-1bc-1-2c
2:38–3:52Communism in Asia: China, Korea and Vietnamgcse-hist-1bc-2-1
3:52–4:16The space racegcse-hist-1bc-2-2b
4:16–4:28The Berlin Wallgcse-hist-1bc-3-1
4:28–5:41The Cuban Missile Crisisgcse-hist-1bc-3-2
Heddy Score2/7, Below the standard
  • Trusted source · passed. The creator's own upload, live and playable here.
  • On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
  • Spec-true · not judged yet. Accurate, and right for the current UK specification.
  • Focused · passed. One idea, short enough to watch in one go.
  • Accessible · not judged yet. Good captions, clear sound and pictures.
  • Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
  • Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
★ passed · ☆ pending · ✕ failed
Our students

Not enough students yet

Our own students' answers. These are what move ★7 Proven.
How the Heddy Score works

Why we picked it

Short single-take overview of the Cold War from 1945 to 1991, made by a teacher-led channel; good as a recap for GCSE.

History Bombs on YouTubechecked 2026-10-16