Thank god for the Royal Navy - at least they'll be able to sort things out - or can they? Rudyard Kipling summed it up best in Tommy "Oh it's Tommy this and Tommy that, and Tommy go away, but it's thank you Mr Atkins when the band begins to play". In the same vein, people seem to think that our Armed Forces have got something up their sleeve, a hidden flotilla that could somehow whisk them all back from their far flung destinations. What seems to be lost in the hype is that only 3 ships can be mustered for this task - still miraculous given the nature of the paltry defence budget, but a really sorry reflection of just how mismatched the general public's ideals of the capabilities of defence are, versus the funds available.
If Dunkirk happened again, then I'm afraid that there simply just isn't enough of the plucky British spirit left, it's been dumbed out of people. And as for the heroic Armed Forces, well, there might just be even less of them left after the next election.