Sentence:  One particularly damaging, but often ignored, effect of conflict on education is the proliferation of attacks on schools...as children, teachers or school buildings become the targets of attacks. Parents <WSD>fear</WSD> sending their children to school. Girls are particularly vulnerable to sexual violence. 
Meaning of the word marked with <WSD> tags:  (feel fear about (something)) To feel fear about (something or someone); to be afraid of; to consider or expect with alarm.