On 20 November 1989, States ratified what would become the most widely ratified human rights treaty in history, the United Nations Convention on the Rights of the Child (UNCRC). Its Article 3 establishes the best interests of the child as a primary consideration in all actions concerning children. However, 35 years after its adoption, we are still witnessing difficulties in implementing this principle. One example is the 30,000 children of former ISIS fighters who, ten years after the defeat of ISIS, still remain detained.
