<P> The Slavery Commission sought to eradicate slavery and slave trading across the world, and fought forced prostitution . Its main success was through pressing the governments who administered mandated countries to end slavery in those countries . The League secured a commitment from Ethiopia to end slavery as a condition of membership in 1923, and worked with Liberia to abolish forced labour and intertribal slavery . The United Kingdom had not supported Ethiopian membership of the League on the grounds that "Ethiopia had not reached a state of civilisation and internal security sufficient to warrant her admission ." </P> <P> The League also succeeded in reducing the death rate of workers constructing the Tanganyika railway from 55 to 4 percent . Records were kept to control slavery, prostitution, and the trafficking of women and children . Partly as a result of pressure brought by the League of Nations, Afghanistan abolished slavery in 1923, Iraq in 1924, Nepal in 1926, Transjordan and Persia in 1929, Bahrain in 1937, and Ethiopia in 1942 . </P> <P> Led by Fridtjof Nansen, the Commission for Refugees was established on 27 June 1921 to look after the interests of refugees, including overseeing their repatriation and, when necessary, resettlement . At the end of the First World War, there were two to three million ex-prisoners of war from various nations dispersed throughout Russia; within two years of the commission's foundation, it had helped 425,000 of them return home . It established camps in Turkey in 1922 to aid the country with an ongoing refugee crisis, helping to prevent disease and hunger . It also established the Nansen passport as a means of identification for stateless people . </P> <P> The Committee for the Study of the Legal Status of Women sought to inquire into the status of women all over the world . It was formed in 1937, and later became part of the United Nations as the Commission on the Status of Women . </P>

What major powers were not members of the league of nations