Content_paragraphs:  Long-term displacement at protection sites has led to some fundamental societal
  
  shifts and social stratification between those living inside and outside the sites,
  
  including changes in gender relations. Because of the different security threats facing
  
  men and women, women more regularly leave protection sites than men and, in many
  
  cases, have assumed the role of breadwinners. In some locations,  children living
  
  inside the sites have had different access to educational opportunities than those
  
  outside, including limited access to national examinations required for graduation and
  
  therefore advancement to higher levels of education.