Winston Churchill, Speech to the nation, 11 September 1940
Behind these clusters of ships or barges there stand large numbers of German troops, awaiting the order to go on board and set out on their very dangerous and uncertain voyage across the seas. We cannot tell when they will try to come; we cannot be sure that in fact they will try at all; but no-one should blind himself to the fact that a heavy full-scale invasion of this Island is being prepared with all the usual German thoroughness and method, and that it may be launched now — upon England, upon Scotland, or upon Ireland, or upon all three.
If this invasion to going to be tried at all, it does not seem that it can be long delayed. The weather may break at any time. Besides this, it is difficult for the enemy to keep these gatherings of ships waiting about indefinitely while they are bombed every night by our bombers, and very often shelled by our warships which are waiting for them outside.
Therefore we must regard the next week or so as a very important period in our history. It ranks with the days when the Spanish Armada was approaching the Channel, and Drake was finishing his game of bowls; or when Nelson stood between us and Napoleon’s Grand Army at Boulogne. We have read all about this in the history books; but what is happening now is on a far greater scale and of far more consequence to the life and future of the world and its civilisation than those brave old days.’