If the UK economy really is a tinderbox http://www.dailymail.co.uk/news/article-1246389/Bill-Gross-UK-recession-The-British-economy-sits-bed-nitroglycerine-investors-warned.html and there was suddenly a crisis of leadership/social unrest, to who are the UK Armed Forces beholden to take orders in the first instance: the UK PM? The UK cabinet? The UK Defence Minister? Or the Field Marshal/Air Marshal/Sea Lord of each Armed Service? If there are conflicting orders, who are they duty bound to obey first? Or is it discretionary?