The sentiments of all of the allied powers heading into the war can be epitomized by the following passage from one of Churchill’s early speeches during the war:
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 on 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.
The entire article which discusses Churchill and his poetic speeches can be found here.