"(...) Russian Federation[edit] City of Moscow[8] — technically, it is just a "P" (i.e. Prohibited) airspace (according to international classification and aeronavigational maps).[citation needed] Many flights are being regularly routed through the outer regions of this airspace. (...)" http://en.wikipedia.org/wiki/Prohibited_airspace#No-fly_zones_as_of_November_2011
