Beyond these policy actions, Europe also needs to speak with one voice when dealing with monopoly suppliers such as Russia – or, in the future, with an Iran that might one day become linked to the planned Caspian pipelines. Such a single voice would not erode individual countries’ sovereign right to determine their energy production mix i.e. balance between conventional, renewables and nuclear, as some Eurosceptics claim; it is simply common sense between countries determined to defend their common security.