“The Security Council expresses grave distress at the level of violence in Yemen, including indiscriminate attacks in densely populated areas, and the impact this has had upon civilians, including large numbers of civilian casualties and damage to civilian objects. The Security Council calls on all parties to comply with their obligations under international humanitarian law, including to respect the principle of proportionality and at all times to distinguish between the civilian population and combatants, and between civilian objects and military objectives, and by taking all feasible precautions to avoid, and in any event minimise, harm to civilians and civilian objects and infrastructure, and to end the recruitment and use of children and other violations committed against them in violation of applicable international law, in order to prevent further suffering of civilians. The Security Council calls on all parties to respect and protect schools, medical facilities, and personnel. The Security Council underlines the need to ensure the security of humanitarian and United Nations personnel. The Security Council condemns in the strongest possible terms ballistic missile attacks by the Houthis against the Kingdom of Saudi Arabia, with particular concern for the 4 November and 19 December 2017 attacks which deliberately endangered civilian areas. The Security Council reiterates its call on the parties to agree on the modalities for a durable Cessation of Hostilities.