Their generation were past masters at the throw away line, TTN. I always liked Bob Doe's description of the only time he was authorised to fire his guns in practice before being launched into action. He was briefed to fire at the North Sea. "I managed to hit it!", he said triumphally.
"Boy's" observation that the present generation could do just as well as his is shared by our own Danny42C, who will not countenance that theirs was remarkable in any way. No doubt they are both right but that doesn't change the fact that it was theirs that was on watch when enjoined to:-
Let us therefore brace ourselves to our duties, and so bear ourselves that, if the British Empire and Commonwealth last for a thousand years, men will still say, "This was their finest hour."
No matter that the Empire is past and the Commonwealth may not so endure, they will be remembered in a thousand years because they saved not only this country but enabled the Invasion of Europe four years later to liberate it in turn.