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Albania

The frontiers of the Principality of Albania had not been set during the Paris Peace Conference in 1919, as they were left for the League to decide. They had not yet been determined by September 1921, creating an unstable situation. Greek troops conducted military operations in the south of Albania. Kingdom of Serbs, Croats and Slovenes (Yugoslav) forces became engaged, after clashes with Albanian tribesmen, in the northern part of the country. The League sent a commission of representatives from various powers to the region. In November 1921, the League decided that the frontiers of Albania should be the same as they had been in 1913, with three minor changes that favoured Yugoslavia. Yugoslav forces withdrew a few weeks later, albeit under protest.

The borders of Albania again became the cause of international conflict when Italian General Enrico Tellini and four of his assistants were ambushed and killed on 27 August 1923 while marking out the newly decided border between Greece and Albania. Italian leader Benito Mussolini was incensed and demanded that a commission investigate the incident within five days. Whatever the results of the investigation, Mussolini insisted that the Greek government pay Italy Lire 50 million in reparations. The Greeks said they would not pay unless it was proved that the crime was committed by Greeks.

Mussolini sent a warship to shell the Greek island of Corfu, and Italian forces occupied the island on 31 August 1923. This contravened the League's covenant, so Greece appealed to the League to deal with the situation. The Allies agreed (at Mussolini's insistence) that the Conference of Ambassadors should be responsible for resolving the dispute because it was the conference that had appointed General Tellini. The League Council examined the dispute, but then passed on their findings to the Conference of Ambassadors to make the final decision. The conference accepted most of the League's recommendations, forcing Greece to pay fifty million lire to Italy, even though those who committed the crime were never discovered. Italian forces then withdrew from Corfu.