Failures: Vilna (1920)

History: Cambridge International GCSE The Twentieth Century (Option B), topic 2.2.3

The Vilna Crisis (1920)

The League of Nations failed to resolve the Vilna dispute in 1920, exposing its weakness in keeping peace between Poland and Lithuania.

The League of Nations faced the Vilna crisis in 1920 between Poland and Lithuania.
Lithuania was a newly created country from the Treaty of Versailles.
Vilna was the capital of the newly-established Lithuania.
The conflict started after the Polish army took Vilna on 9 October 1920.
Poland thought it had a claim to Vilna - it had a large Polish-speaking population.
Lithuania claimed Vilna as its historical capital city.
Poland occupied Vilna after World War I, ignoring Lithuania's protests.

The League of Nations tried to mediate the Vilna conflict.
The League called for a plebiscite (vote by the people in a country) to decide Vilna's status.
The plebiscite did not happen because neither Poland nor Lithuania wanted to hold it in fear they would lose.
The League lacked military power to enforce decisions.
The League sent a commission, but Poland refused to cooperate fully.
The commission’s aim was to investigate the problem and find a solution.

The League relied on member countries' cooperation, which Poland ignored.
The League had no army to stop Poland's occupation.
Neither Britain nor France wanted to send troops to enforce the League’s decision for their own economic and political reasons.
The League had no means to impose sanctions effectively on Poland.

The League needed stronger enforcement powers to keep peace.
Member countries' support was essential for League success.
The Vilna case showed the League's difficulty in resolving territorial conflicts.
The League's failure highlighted the challenges of post-war diplomacy.