The BBC in conjunction with the History Department of the Open University made a documentary series about the war.
Summing up in the final episode the presenter, Jeremy Paxman, made this statement to camera.

57 minutes in. Paxman to camera, "
Later generations would contend it had been a futile war. The war was terrible certainly, but hardly futile.
It stopped the German conquest of much of Europe, and perhaps even of villages like this.

Never before in the nation's History had a war required the commitment and the sacrifice of the whole population, and by and large, for 4 years, the British people kept faith with it."