Yes I've heard of NATO - and I also know that some of our top politicians are privately asking whether NATO now serves any purpose. They are asking whether NATO will still exist by 2020. So what does NATO have to do with it? Supposedly the RN is to protect this country. If the UK exits the EU, then NATO will certainly be called into question. You might have noticed that since the USSR collapsed, NATO has not served in its original function - its operations have not been to protect its members - they have been far from its geographical area of interest. We in this country should be free to pick and choose whether we will be party to any overseas action. Such involvement should be in pursuit of our national interests and nothing else.