The West is reliant on Russia’s Gas reserves  NATO’s European members have an additional reason not to offend Russia by continuing to expand the alliance in defiance of Moscow. Much of Europe depends on imports of Russian gas for their energy needs, Russia currently supplies 25% of European gas and this may rise to as high as 55% by 2020. [1] Unfortunately the Kremlin has made clear over the past three years that it is prepared to use its control of energy as a political weapon. It has already limited the flow of energy to states (e.g. Ukraine, Belarus, Estonia) who have annoyed it on several occasions, and may well be prepared to turn lights, heating and factories off across Europe in retaliation for interference in its near abroad. [2]  Russia’s energy riches in a time of high oil prices also mean that it is far richer and self-confident than at any time since the fall of communism. The profits of its energy wealth have also enabled its military to be strengthened. This means that even if Moscow backed down in response to western assertiveness in the past, it is now determined to overturn past humiliations.  [1] Paillard, Christophe-Alexandre, ‘Rethinking Russia: Russia and Europe’s Mutual Energy Dependence’, Journal of International Affairs, Vol. 63, No.2, Spring/Summer 2010, pp.65-84,   [2] Weir, Fred, ‘Why Russia is cutting off gas supplies to Belarus’, The Christian Science Monitor, 21 June 2010,