In the 1920s, the League was very successful in its work for a better world - it took half a million PoWs home, helped Turkish refugees, attacked slave traders and drug sellers and supported measures against leprosy and malaria.

It was also quite successful in settling border disputes - for example, it settled a dispute between Sweden and Finland over the Aaland Islands, and stopped a war between Greece and Bulgaria.

However, when it was faced with a strong nation prepared to ignore it - for instance Italy in 1923 over Corfu - the League could do nothing.