ABSTRACT
The existing Euro-Atlantic security framework is supported by three main documents: the Vienna Document 2011 on Confidence and Security-Building Measures (CSBMs), the Treaty on Open Skies, and the Conventional Armed Forces in Europe Treaty (CFE). The Treaty on Open Skies was signed into agreement on March 24, 1992 but only entered into force on January 1, 2002 making it the most recent of the region's agreements to be discussed. The evolution in the role of CSBMs can be seen as part of a larger interest in adaptation and modernisation of the existing security regime. While under Putin there were constraints on Russia's ability to promote Vienna Document reform, mainly the lack of a process for such reform to be undertaken, this was not a problem under Medvedev since a procedure had been introduced. The response to Russia's suspension of the CFE was deep disappointment and concern from the NATO member-states.
