The Paris Peace Treaties and the League of Nations (1919–1935) (History HL)

When the guns fell silent in November 1918, Europe lay in ruins. Four empires — the German, Austro-Hungarian, Ottoman, and Russian — had collapsed. Between January 1919 and July 1923, the Allied Powers met in Paris to reshape the map of Europe and punish the defeated states. The result was five separate peace treaties. Together they are called the Paris Peace Settlement.

The Big Three and their aims: Woodrow Wilson (USA) wanted a fair peace based on his Fourteen Points — including self-determination and a League of Nations. Georges Clemenceau (France) wanted Germany crippled so it could never attack France again. David Lloyd George (Britain) wanted Germany punished but not so severely that it would become a breeding ground for extremism. These conflicting aims shaped every treaty.

The War Guilt Clause and reparations: Article 231 of the Treaty of Versailles forced Germany to accept sole responsibility for the war. This was the legal basis for reparations — eventually fixed at £6.6 billion in 1921. Germans across the political spectrum regarded this as a humiliating lie, and the 'stab in the back' myth grew alongside it. Hitler later exploited this grievance relentlessly.

The self-determination problem: Wilson's principle of self-determination — that peoples should govern themselves — was applied inconsistently. Germans in the Sudetenland (given to Czechoslovakia) and the South Tyrol (given to Italy) found themselves under foreign rule. Austrians were forbidden from uniting with Germany. This made the treaties look hypocritical and gave revisionist powers a ready-made grievance.

Paper 3 essay angle: Examiners often ask whether the Paris Peace Settlement was 'too harsh' or 'too lenient' on Germany. A strong answer argues that Versailles was harsh enough to cause resentment but not harsh enough to prevent German recovery — leaving Germany wounded but not permanently weakened. Link this to the causes of the Second World War in your conclusion.

The League of Nations was Wilson's greatest ambition — and one of his greatest failures. Established by the Covenant embedded in the Paris treaties, it was designed to resolve disputes peacefully and punish aggression through collective security. Yet from the start it was fatally weakened.

Successor states in central and eastern Europe: The peace treaties created or enlarged successor states — Poland, Czechoslovakia, Yugoslavia, Romania, Hungary, Austria — out of the wreckage of the Habsburg and Russian empires. The Little Entente tried to guarantee the peace settlement. But many of these new states were ethnically mixed, economically weak, and politically fragile, making them vulnerable to great-power pressure in the 1930s.

Assess collective security fairly: Do not simply say 'the League failed.' Strong answers distinguish between the League's genuine achievements in the 1920s (when revisionist powers were weak) and its structural inability to stop great-power aggression in the 1930s (when Germany, Italy, and Japan openly challenged the system). The League's limits were built in from 1920 — lack of US and USSR membership made genuine collective security impossible.

Both Italy and Germany emerged from the Paris Peace Settlement deeply dissatisfied. Their revisionist foreign policies — driven by Mussolini and Hitler respectively — formed the central challenge to European diplomacy in the interwar period.

Italy: the 'mutilated victory': Italy had fought on the Allied side and expected generous territorial rewards. At Versailles it gained South Tyrol and Trieste but was denied Fiume and large parts of Dalmatia it had been promised by the secret Treaty of London (1915). Italian nationalists called this a 'mutilated victory' (vittoria mutilata). Mussolini, who came to power in 1922, exploited this resentment to build support and justify an aggressive foreign policy.

The Stresa Front (April 1935): In April 1935, Britain, France, and Italy met at Stresa and condemned German rearmament. They pledged to maintain the Locarno agreements and resist any further unilateral revision of the peace treaties. For a brief moment it looked like the three powers might contain Hitler together. But the Front collapsed within months: Britain signed the Anglo-German Naval Agreement (June 1935) without consulting France or Italy — accepting a German navy 35% the size of the Royal Navy — and then Italy's invasion of Abyssinia (October 1935) destroyed the alliance entirely.

Why Italy and Germany cooperated — eventually: In 1934–35, Mussolini and Hitler were rivals, not allies — Mussolini personally despised Hitler and blocked the Austrian coup. The shift came only after the Abyssinia crisis alienated Italy from Britain and France. The Rome–Berlin Axis was announced in October 1936 and the Pact of Steel in May 1939. Examiners credit students who track this change over time rather than treating Italy and Germany as always aligned.