(CNN)They have been killed, recruited to fight, used as human shields, forced into marriage and enslaved. 2017 has been a "nightmare year" for children caught in the crosshairs of conflict, the UN's agency for children has said.
2017 was a 'nightmare year' for children in conflict, UN says
In a sobering list of this year's unrest, the UNICEF highlights the "shocking scale" of harm to children and how the world has failed them.
In northeastern Nigeria and Cameroon, the militant Islamist group Boko Haram forced at least 135 children to participate in suicide bombings, almost five times the number in 2016.
In other contexts, children are suffering from diseases that are inevitably associated with conflict, when basic needs -- such as food, clean water and medical care -- are not readily available.
In Yemen -- where at least 5,000 children have died in the civil war that has raged for almost three years -- more than 11 million children are now in need of humanitarian assistance. More than 1.8 million are suffering from malnutrition, around 385,000 of them so severely that they risk death if they are not urgently treated.
"Children in conflict zones around the world have come under attack at a shocking scale throughout the year," UNICEF said in a statement, adding that parties to conflicts were "blatantly disregarding international laws designed to protect the most vulnerable."
Children were being targeted in places where they should feel safe, including their homes, schools and playgrounds, UNICEF said.
"As these attacks continue year after year, we cannot become numb. Such brutality cannot be the new normal," UNICEF Director of Emergency Programs Manuel Fontaine said.
The UNICEF report highlights several other conflicts that have had a significant impact on children:
• Violence in the Democratic Republic of the Congo's Kasai region has driven 850,000 children from their homes. More than 400 schools were attacked, and an estimated 350,000 children have suffered from severe acute malnutrition.