The League of Nations, formed in 1919, quickly became the organization coordinating international efforts to study and attempt to end the practice.
When it was established, the League of Nations at first did not include women's rights groups, who protested their exclusion and canvassed politicians for support.
and the Article 7 to "undertake in connection with immigration and emigration adopt such administrative and legislative measures as are required to check the traffic in women and children.
In particular, they undertake to make such regulations as are required for the protection of women and children traveling on emigrant ships, not only at the points of departure and arrival, but also during the journey and to arrange for the exhibition, in railway stations and imports of notices warning women and children of the traffic and indicating the places where they can obtain accommodation and assistance."
The 1921 Convention set new goals for international efforts to stem human trafficking, primarily by giving the anti-trafficking movement further official recognition, as well as a bureaucratic apparatus to research and fight the problem.