by the navies and air forces of the world are the HMNB Portsmouth in Portsmouth, UK, the Naval Air Station Whidbey Island, Washington State, USA, or Ramstein Air Base, Germany (the last two are each designated as a Main Operating Base). Other examples of non- or semi-permanent military bases include a Forward Operating Base (FOB), a Logistics Base (Log base) and a Fire Base (FB). A military base may also contain large concentrations of military supplies in order to support military logistics. Most military bases are restricted to the public and usually only authorized personnel may enter them (be it military personnel or their relatives and authorized civilian personnel). In addition to the main military facilities on a certain installation, military bases usually (but not always) have various different facilities for military personnel. These facilities vary from country to country. Military bases can provide housing for military personnel, a post office and dining facilities (Restaurants). They may also provide support facilities such as fast food restaurants, gas stations, chapels, schools, banks, thrift stores, a hospital or clinic (dental or health clinics, as well as veterinarian clinics), lodging, movie theaters, and, in some countries, retail stores (usually a Supermarket such as Commissary and a Department Store, such as AAFES). On American military installations, Family, Morale, Welfare and Recreation (FMWR) provides facilities such as fitness centers, libraries, golf courses, Travel centers, Community service centers, Campgrounds, child development centers, youth centers, automotive workshops, hobby/arts and crafts centers, bowling centers, and community centers. Bases used by the United States Air Force Reserve tend to be active USAF bases. However, there are a few Air Reserve Bases, such as Dobbins ARB, Georgia, and Grissom ARB, Indiana, both of which are former active-duty USAF bases. Facilities of the Air National Guard are often located on civil airports in a secure cantonment area not accessible to the general public, though some units are based on USAF bases, and a few ANG-operated bases, such as Selfridge ANGB, Michigan. Support facilities on Air National Guard and Air Force Reserve installations tend to not be as extensive as active bases; i.e., they usually do not have on-base lodging (though Kingsley Field ANGB, Oregon, is an exception), clinics (except for drill days), or retail stores (although some have small convenience stores) In Russian usage "military base" or "naval base" is not limited to denoting a specific fence described facility and usually