Conscription exists in Israel for all Israeli citizens over the age of 18 who are Jewish (both genders), or Druze and Circassian (male only); Arab citizens of Israel are not conscripted. Arab citizens can enlist if they want to but are not required by law. Other exceptions are made on religious, physical, or psychological grounds. As of 2020, the normal length of compulsory service was two years and six months for men (with some roles requiring an additional four months of service), and two years for women (with some roles requiring an additional eight months of service).