In the aftermath of World War II, the General Assembly of the United Nations votes to establish the United Nations International Children’s Emergency Fund (UNICEF), an organization to help provide relief and support to children living in countries devastated by the war.

After the food and medical crisis of the late 1940s passed, UNICEF continued its role as a relief organization for the children of troubled nations and during the 1970s grew into a vocal advocate of children’s rights. During the 1980s, UNICEF assisted the U.N. Commission on Human Rights in the drafting of the Convention on the Rights of the Child. After its introduction to the U.N. General Assembly in 1989, the Convention on the Rights of the Child became the most widely ratified human rights treaty in history, and UNICEF played a key role in ensuring its enforcement.

Of the 184 member states of the United Nations, only two countries have failed to ratify the treaty–Somalia and the United States. Somalia does not currently have an internationally recognized government, so ratification is impossible, and the United States, which was one of the original signatories of the convention, has failed to ratify the treaty because of concerns about its potential impact on national sovereignty and the parent-child relationship.