What purposes do Churchill’s references to World War I serve? How do those references cohere with Churchill’s emphasis on looking to the future rather than the past?

Which socioeconomic and political issues in Germany after World War I led to the rise of Hitler and his ideology? Do these issues factor into Churchill’s speech? What does Churchill imply motivates Nazi ideology?

What is Churchill’s attitude toward France in this speech? How does he reconcile his stated solidarity with France with the decision not to commit all of Britain’s forces to defending it during the Battle of France?