This is also known as the "We Shall Fight on the Beaches" speech that Churchill gave during the Battle of France (which of course, the French would lose to the Nazis, who marched into Paris on June 14, 1940). Churchill was attempting to rally support from the British politicians and the people, since England too was at war with Germany. Great Britain was, in fact, on its own, since the United States would not enter the war until Japan attacked Pearl Harbor a year later.
You should begin with a chart that separates both similarities and differences. Read both articles and annotate everything you notice on to the chart. You could then begin drafting all your work and revise.