The present report, which covers the period from January to December 2018, is submitted pursuant to Security Council resolution 2427 (2018). The preparation of the report involved broad consultations within the United Nations, in the field and at Headquarters, and with relevant Member States. It highlights global trends regarding the impact of armed conflict on children and provides information on violations committed from January to December 2018, as well as related protection concerns. Where possible, violations are attributed to parties to conflict and, pursuant to resolutions of the Council, the annexes to the present report include a list of parties that, in violation of international law, engage in the recruitment and use of children, the killing and maiming of children, rape and other forms of sexual violence against children, attacks on schools and/or hospitals and attacks or threats of attacks against protected personnel,1 and the abduction of children.