The 1926 Slavery Agreement or the Convention on the Oppression of the Slave Trade and Slavery was an international treaty concluded under the aegis of the League of Nations and signed for the first time on September 25, 1926. March 1927, the same day it came into effect.  The aim of the Convention was to confirm and promote the oppression of slavery and the slave trade. The definition of slavery was further refined and expanded by a complementary convention of 1956. The 1926 Slavery Agreement established concrete rules and articles to promote the oppression of slavery and the slave trade. b) the gradual abolition and as soon as possible of the total abolition of slavery in all its forms. (2) The slave trade encompasses all acts involved in the arrest, acquisition or elimination of a person who intends to enslave it; any act related to the acquisition of a slave for the sale or exchange of a slave; any act of surrender by the sale or exchange of a slave acquired for sale or thought and, in general, any act of trade or transport to slaves. Moreover, since it is necessary to prevent the development of forced labour under conditions equivalent to slavery, the High Contracting Parties give each other all the necessary support to achieve the abolition of slavery and the slave trade. In the Brussels Conference Act of 1890, the signatories stated that they were equally driven by the firm intention to end the African slave trade. The Brussels law was supplemented and revised by the Saint-Germain-en-Laye Convention, signed by the Allies of the First World War on 10 September 1919, in which the signatories pledged to „achieve the total oppression of slavery in all its forms and the slave trade in land and at sea.“ (Art.11) In order to complete and extend the work carried out under the Brussels Law and to find a way to give practical effects to the intentions expressed by the signatories of the Saint-Germain-en-Laye Convention with regard to the slave trade and slavery, and recognising the need to conclude more detailed agreements for this purpose than those contained in this Convention , the parties agreed to prevent and repress the slave trade and to gradually achieve the total elimination of slavery in all its forms.
The High Contracting Parties recognise that the use of forced labour or forced labour can have serious consequences and undertake to take all necessary measures to prevent forced labour or forced labour from turning into conditions equivalent to slavery in the territories under their jurisdiction, jurisdiction and protection. , their sovereignty or guardianship.