The IDF (Israel Defense Forces) is the national military of the State of Israel. Every Israeli citizen over the age of 18 who is Jewish, Druze or Circassian is required to serve in the IDF, with some exceptions. Once enlisted, men are expected to serve for a minimum of 32 months and women are expected to serve for a minimum of 24 months. IDF soldiers serve in a variety of units, ranging from elite combat units to combat support units. The IDF has participated in every armed conflict involving Israel since its formation in 1948. The IDF is headed by the Chief of the General Staff, who is subordinate to the Israeli Defense Minister. IDF soldiers have three types of insignia (other than rank insignia) which identify their corps, specific unit, and position. The combat option is Israel Border Police (Magav – the exact translation from Hebrew means "border guard") service, part of the Israel Police. Some soldiers complete their IDF combat training and later undergo additional counter-terror and Border Police training.