"In poor countries wars are rarely a short sharp military operation. They last 12 years on average, according to UNESCO. For all that time head teachers and teachers can be battling in difficult conditions to keep any semblance of education going as schools are destroyed and families and teachers are forced to flee their homes to avoid the fighting. For the education system, tracking the whereabouts of teachers and ensuring they are allotted to a nearby school and are getting paid is a serious challenge. Rebuilding and re-supplying schools can takes years to complete." (Quoted from article)