Angela Stent : Le Monde utilise Key to those interests is the Russian Black Sea Fleet based in Crimea . Stent says that beyond sanctions and containment , Western reaction may be limited .
Angela Stent : Vladimir Putin 's move into Crimea is central to his view of Russia 's interests . Key to those interests is the Russian Black Sea Fleet based in Crimea . Stent says that beyond sanctions and containment , Western reaction may be limited .