There was such a moment, unmistakably, at the time of the disaster in France. After eight months of vaguely wondering what the war was about, the people suddenly knew what they had got to do: first, to get the army away from Dunkirk, and secondly to prevent invasion. It was like the awakening of a giant. Quick! Danger! The Philistines be upon thee, Samson! And then the swift unanimous action – and then, alas, the prompt relapse into sleep.
