Post-WWI Settlements and the League of Nations

Making peace after the First World War

After the First World War ended in 1918, the victors faced two connected problems: how to settle the consequences of the war and how to prevent another one. The armistice had stopped the fighting, but a lasting peace still needed to be negotiated. Discussions at the Paris Peace Conference began in January 1919. The resulting settlement included separate treaties with the defeated powers; the Treaty of Versailles, signed in 1919, imposed peace terms on Germany.

The League of Nations, which began work in 1920, offered a new way for countries to cooperate and settle disputes. This was an internationalist approach: peace would depend on cooperation between countries, not simply on each country protecting its own interests. Yet there was a tension at its heart. The new organisation aimed to encourage cooperation, while the settlement associated with it generated deep resentment in Germany.

Why the Big Three wanted different kinds of peace

The most influential negotiators were the Big Three: Georges Clemenceau, Prime Minister of France; Woodrow Wilson, President of the USA; and David Lloyd George, Prime Minister of Britain. All wanted peace, but they disagreed about how to secure it.

Clemenceau prioritised French security. Much of the fighting on the Western Front had taken place in France, damaging roads, factories and other infrastructure. France also shared a border with Germany and feared another invasion. Clemenceau therefore wanted Germany weakened militarily and made to pay substantial reparations. He also wanted Alsace-Lorraine, which Germany had taken from France, returned. For him, lasting peace required protection against Germany, not simply promises of cooperation.

Wilson wanted a fair and lasting peace, guided by his Fourteen Points. These included disarmament, more open diplomacy and self-determination: the principle that national peoples should be able to decide their own political future. His proposed League of Nations would give countries a peaceful way to resolve disagreements. Wilson also feared that excessive punishment would weaken Germany’s economy and obstruct Europe’s recovery.

Lloyd George faced competing pressures. The British public wanted Germany punished, and he wanted to reduce Germany’s naval power and protect Britain’s empire. However, Germany had also been an important trading partner. A Germany too poor to buy British goods would damage British interests. He therefore favoured punishment without destroying Germany’s ability to recover and trade.

These differences help explain why the settlement was a compromise. French demands for security pulled towards severe restrictions, while economic recovery and Wilson’s cooperative vision pulled towards reconciliation.

What Versailles meant for Germany

The treaty weakened Germany through financial, territorial and military restrictions. Article 231, commonly called the War Guilt Clause, placed responsibility for the war and its damage on Germany and its allies. Germans resented being made to accept blame. Germany also had to pay reparations to the Allies; the eventual bill was £6.6 billion. These payments made the financial consequences of defeat substantial and long-lasting.

Germany lost about 10% of its land and 12.5% of its population, as well as all its overseas colonies. European territorial losses included land transferred to Poland and Czechoslovakia. The later division of Upper Silesia, a disputed region with valuable coal mines, became a particular source of disagreement with Poland. Territorial losses reduced Germany’s resources and international standing and encouraged demands to change its eastern borders. Union with Austria was also forbidden, limiting Germany’s freedom to expand through unification.

Military restrictions reduced Germany’s ability to fight another war. Its army was limited to 100,000 soldiers, and it was forbidden submarines and armoured vehicles. The Rhineland was demilitarised: German military forces were not allowed there. This restricted Germany’s ability to defend its western border as well as its ability to threaten neighbouring countries.

These measures could therefore be viewed in two ways. For the victors, weakening Germany offered protection against renewed aggression. For many Germans, the restrictions were humiliating and unfair, giving them reasons to demand changes to the settlement.

Why resentment mattered

Many Germans described Versailles as a diktat, or dictated peace. They believed that the terms had been imposed on them rather than agreed fairly. Resentment concerned more than the cost of reparations: blame, lost territory and reduced military power all contributed to a sense of national humiliation.

Some Germans also believed that the army could have won the war but had been ‘stabbed in the back’ by politicians. They labelled Ebert and the government associated with the November 1918 armistice the ‘November Criminals’. This accusation turned anger about defeat against Germany’s political leaders; it was not an established explanation of Germany’s defeat.

The international consequence was important. A settlement was less likely to command lasting cooperation if a major European country wanted to overturn it. Versailles restricted Germany in the short term, but resentment weakened acceptance of the post-war order. This did not make another war inevitable; it did make reconciliation more difficult.

How the League was meant to keep peace

The League reflected US President Woodrow Wilson’s vision of a more cooperative international order. Its central aims were to keep peace and promote international cooperation. Collective security meant that aggression should concern all members, rather than only the country being attacked.

Different parts of the League had different jobs. The Assembly met annually, while the Council considered crises as they arose. A Secretariat handled administration. The Court of International Justice offered a legal route for resolving disputes, and specialist committees undertook humanitarian work.

The League could investigate disputes and encourage countries to accept a settlement. Arbitration offered an alternative to fighting: a third party could consider competing claims and reach a decision. Trade sanctions could put economic pressure on an aggressor by restricting its trade.

These methods depended on cooperation. The League had no army of its own, so it could not independently force an aggressor to obey. Unanimity requirements for major decisions also made action difficult when members disagreed. National interests could therefore obstruct collective action precisely when it was most needed.

Success when countries accepted a settlement

The Åland Islands dispute of 1921 showed how peaceful settlement could work. Sweden and Finland both claimed the islands, creating a risk of conflict. The League investigated and decided that the islands should remain part of Finland, with special rights for their Swedish-speaking inhabitants.

Both countries accepted the decision. The League maintained peace without needing military force, and the protection of the inhabitants’ rights helped address the concerns behind the dispute. This was a genuine internationalist success: the countries accepted an agreed process rather than trying to settle their disagreement through war.

In Upper Silesia in 1921, Germany and Poland also accepted a League settlement dividing the disputed territory. Acceptance was a success, but it did not remove every grievance. Poland complained about the share of land it received, while Germany resented the loss of coal mines. A settlement could prevent immediate conflict without producing lasting satisfaction.

Failure when national interests blocked cooperation

The Vilna dispute of 1920 exposed the weakness of collective security. Lithuania appealed for help after Polish forces took Vilna, but the League failed to secure an effective response. France did not want to upset Poland, which it regarded as a potential ally. Britain was unwilling to act without support from other members. Their own priorities took precedence over joint enforcement.

The Corfu incident of 1923 revealed a similar problem with a powerful aggressor. After an Italian general was killed in Greece, Mussolini demanded compensation and Italian forces occupied the Greek island of Corfu. Greece appealed to the League, but Italy refused to cooperate.

Italy eventually withdrew, yet Greece had to pay compensation. The Conference of Ambassadors intervened and could override the League’s approach. Withdrawal did not therefore amount to a clear League victory: Mussolini had used force and secured compensation, while the League had failed to control the settlement effectively.

There was also an inconsistency between Corfu and the Greek invasion of Bulgaria in 1925. Greece was punished for its action, whereas Italy had not been punished for occupying Corfu. This damaged the League’s reputation for treating countries equally.

Membership and reconciliation changed during the decade

The USA’s absence weakened the League, despite Wilson’s role in promoting it. Germany and Soviet Russia were also absent at its outset. Without these major powers, the League was less representative and its capacity to apply effective pressure was reduced.

Germany’s position changed in September 1926, when it joined the League and received a permanent seat on the Council. German Foreign Minister Gustav Stresemann sought to improve Germany’s international standing and revise aspects of Versailles through diplomacy. Membership gave Germany a voice in the organisation rather than leaving it outside the post-war system.

This was an important success for reconciliation, but it did not mean that all Germans accepted Versailles. Some opponents still rejected the League because of its association with the treaty. Cooperation could provide a peaceful route for pursuing national aims without removing those aims or the grievances behind them.

A balanced judgement on the 1920s

The League was neither wholly successful nor wholly ineffective. The Åland Islands demonstrated that investigation and compromise could maintain peace. Upper Silesia showed that an accepted settlement could still leave resentment. Germany’s admission in 1926 widened cooperation. Vilna and Corfu demonstrated how national interests and resistance from stronger states could undermine collective security.

The central distinction is between cooperation and enforcement. Internationalism worked best when countries were willing to accept a common solution. It was much less reliable when an aggressor resisted and other powers would not act together. Versailles and the League created a framework for peace, but neither removed the competing national interests that threatened it.

Peacemaking priorities

• Clemenceau: French security; weaken Germany, obtain reparations and recover Alsace-Lorraine.
• Wilson: lasting peace through the Fourteen Points and the League; avoid excessive punishment.
• Lloyd George: punish Germany and protect British power, but preserve German recovery and trade.
• Different priorities meant compromise, not complete fulfilment of any one leader’s aims.

Versailles: terms and impact

• 1919: Treaty of Versailles imposed peace terms on Germany.
• Article 231: responsibility for the war and its damage; German resentment of the ‘War Guilt Clause’.
• Reparations: eventual bill of £6.6 billion.
• Territory: about 10% of land, 12.5% of population and all colonies lost; European losses included land to Poland and Czechoslovakia; union with Austria forbidden.
• Military: army limited to 100,000; no submarines or armoured vehicles; Rhineland demilitarised.
• Impact: weakened Germany but encouraged resentment and demands to revise the settlement.