From The Rise and Fall of the Third Reich, a great quote from Winston Churchill. This was June 1940 right after the evacuation of Dunkirk.
Even though large tracts of Europe and many old and famous States have fallen or may fall into the grip of the Gestapo and all the odious apparatus of Nazi rule, we shall not flag or fail. We shall go on to the end, we shall fight in France, we shall fight in the seas and oceans, we shall fight with growing confidence and growing strength in the air, we shall defend our island, whatever the cost may be, we shall fight on the beaches, we shall fight on the landing grounds, we shall fight in the fields and in the streets, we shall fight in the hills; we shall never surrender, and even if, which I do not for a moment believe, this island or a large part of it were subjugated and starving then our Empire beyond the seas, armed and guarded by the British Fleet, would carry on the struggle, until, in God’s good time, the New World, with all its power and might, steps forth to the rescue and the liberation of the Old. (June 4, 1940)
Picking up with the author’s (William L. Shirer) commentary:
Why should Great Britain fight on alone against helpless odds? Especially when it could get a peace that would leave it, unlike France, Poland and all the other defeated lands, unscathed, intact and free? This was a question asked everywhere except in Downing Street, where, as Churchill later revealed, it was never even discussed, because the answer was taken for granted.
Let us therefore brace ourselves to our duties, and so bear ourselves that, if the British Empire and its Commonwealth last for a thousand years, men will say; “This was their finest hour.” – Churchill (June 18, 1940)