The
armed forces of Yemen include the
Yemen Army (includes
Republican Guard), Navy (includes Marines), 1st Armored Division,
Yemeni Air Force (Al Quwwat al Jawwiya al Yamaniya, which includes the Air Defense Force) (2008). A major reorganization of the armed forces continues. The unified air forces and air defenses are now under one command. The navy has concentration in
Aden. Total armed forces manning numbers about 401,000 active personnel, including conscripts. The
Yemen Arab Republic and the
People's Democratic Republic of Yemen joined to form the Republic of Yemen on 22 May 1990.