Final answer:
Winston Churchill's speeches before the Battle of Britain included his 'Finest Hour' speech and his commitment to fight with 'blood, toil, tears, and sweat', which helped rally the British resistance against the German Luftwaffe.
Step-by-step explanation:
Before the Battle of Britain, Winston Churchill, the newly appointed Prime Minister, delivered several famous speeches that rallied the British people during one of their darkest hours. Among these was his "Finest Hour" speech, and perhaps the most iconic line was when he declared, "Never in the field of human conflict was so much owed by so many to so few," referring to the heroic efforts of the Royal Air Force (RAF) pilots who fought in the skies against the German Luftwaffe. Moreover, Churchill is quoted as saying upon his selection as Prime Minister, "If you ask what is our policy, it is to wage war by sea, land and air with all our might. I have nothing to offer but blood, toil, tears, and sweat." His powerful words united a nation to stand firm against surrender or negotiation with Axis powers, even in the face of possible invasion.