Excerpt from S/RES/2225 (2015), pp. 10

Recalling the responsibility of all Member States to comply with their respective obligations to end impunity and to investigate and prosecute those responsible for genocide, crimes against humanity, war crimes and other egregious crimes perpetrated against children and noting that the fight against impunity for the most serious crimes of international concern committed against children has been strengthened through the work on and prosecution of these crimes by the International Criminal Court, ad hoc and mixed tribunals and specialized chambers in national tribunals