If I might weigh in a bit here, back on topic too, I am a firm believer that if the UK wants to have any kind of influence, be it political, military or otherwise, then the future is the EU.
I know that I'll come under a lot of flack for saying that, but it makes sense and it is realistic. The EU doesn't work at the moment because all the big member countries, especially France, Germany and the UK, are clinging on to agendas that were outdated and unrealistic a long time ago. No country in Europe can be great any more, not alone at least, as no one has the economic power to, but as part of the EU we are the biggest economic power in the world. Of course, that doesn't automatically transfer into military power, but it is a step along that road. If military pooling were introduced in Europe by the time the UK has it's carriers we could have a sizeable carrier force (the two QE's with Charles de Gaulle, plus Italian and Spanish assault carriers among others as compliments), if Airbus were given some sort of subsidisation we could create a reasonable sized force of air tankers and troop transports, with which the burden could be shared between all EU member states similar to the way in which NATO assets are shared. Those are just basic examples, but if the EU had greater economic unity imagine the sort of force that could be produced from it as far as the military is concerned. Look at the sucess had with the Jaguar, Tornado and Eurofighter for starters.
Like I said, I'm sure I'll come under some flack for saying that, but I am British myself and it is because I want Britain to suceed that I want the EU to suceed. We seriously need to wake up and smell the coffee and stop living in the 1930's. We're not the empire we used to be and if we want to have any influence on the world stage it will have to be done in the future through the EU, like it or not. We are, after all, just a tiny island off the coast of Europe. It's a miracle we ever had the sort of power we did, we should be grateful for it, but move on and not try to cling to it in desperation.