The United Nations 1956 Supplementary Convention on the Abolition of Slavery also prohibits serfdom as a practice similar to slavery.
the unitEd NatiONs 1956 sUPpLEmENtAry CONveNtion on the aboliTIon of Slavery aLSo prOhibITs SerFDom as a practice sImilar to sLaVeRy.