The Vienna Document is a series of agreements on confidence and security-building measures in relation to military resources between the states of Europe, starting in 1990, with subsequent updates in 1992, 1994, 1999 and 2011.[1] The Vienna Document 2011 was adopted by 57 Organization for Security and Co-operation in Europe (OSCE) participating states, including the states of Central Asia and Russia (for its territory west of the Ural Mountains). It described its zone of application (ZOA) as "the whole of Europe, as well as the adjoining sea area and air space".[1]