League of Nations Structure

HistoryAQAGCSEUnit: Conflict and Tension 1918-1939
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The basics

Setting the Scene

📖 Setting the Scene

The League of Nations was born from the trenches of World War One. Never again, the world said. Woodrow Wilson's great dream was an international organisation where countries would talk through disputes instead of fighting. Collective security (the principle that an attack on one member is an attack on all, who must unite in response) would deter aggressors — if one country attacked another, all League members would unite against the aggressor. But from day one, the League was crippled. America refused to join. Germany and Russia were excluded. And when real tests came in the 1930s, the League failed spectacularly.

League of Nations - Simple History (7 mins)

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🧠 Memory Aids: Lock In the Key Facts

Structure mnemonic — "SIDE" (the four main bodies of the League):

  • S — Secretariat (civil service, based in Geneva)
  • I — International Court of Justice (at The Hague, settled legal disputes)
  • D — Decisions needed unanimity (the Assembly's fatal weakness)
  • E — Everyone met in the Assembly (all members, once a year)

Plus the Council: the four permanent members were Britain, France, Italy, Japan — think of the Allied powers from WW1, minus the USA.

"No USA = No teeth" — This is the single most important thing to remember about the League's weaknesses. Without America's economy, economic sanctions were leaky (countries just traded with the USA instead). Without America's military, the threat of force was empty. Without America's prestige, the League lacked authority. Every weakness traces back, at least partly, to the USA's absence.

Weaknesses mnemonic — "BUSES" (why the League couldn't go anywhere):

  • B — Britain and France's self-interest undermined impartiality
  • U — USA absent (world's strongest economy and military — absent)
  • S — Slow decisions (Assembly met once a year; unanimity required)
  • E — Economic sanctions were weak without the USA and full compliance
  • S — Structure flawed (no army, veto system, unanimous voting)

Key dates to know cold:

  • January 1918 — Wilson announces his Fourteen Points (Point 14: the League)
  • June 1919 — Treaty of Versailles signed; League Covenant included as Part One
  • November 1919 — US Senate rejects League membership (55–39)
  • January 1920 — League of Nations holds its first meeting in Geneva
  • 1926 — Germany admitted to the League (briefly makes it more credible)
  • 1931 — Japan invades Manchuria; League's first major failure
  • 1933 — Germany and Japan leave the League (fatally weakened)
  • 1935–36 — Abyssinian Crisis; Italy defies League; League collapses as a force
  • 1946 — League formally dissolved; replaced by the United Nations

Visual association — "The toothless referee": Picture a football referee with no yellow or red cards, no whistle, and no power to send players off — only the power to shout "that was wrong!" at them. That is the League of Nations. It could see the foul. It could condemn the foul. But without the USA's economic muscle and a standing army, it could not make anyone stop fouling.

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Quiz · Question 1 of 8

Which major country never joined the League of Nations?

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