What "Blitz"?

clipped from article.nationalreview.com It would be nice — or at least more convenient — if America could fight just one enemy at a time. But that’s seldom how it works. World War II was called a world war for a reason: President Roosevelt might have preferred to take on only Imperial Japan, the nation that had attacked us. Instead, he had to lead the country into battle also against Nazi Germany and Fascist Italy. He had to fight not only in the Pacific but in North Africa and Europe as well. Can you imagine, President Roosevelt being asked: But, sir … what evidence can you present to the American people that the people who attacked the United States on December 7th are, in fact, the same people who are responsible for the so-called “blitz” bombings now taking place in London? What evidence can you present? And also, are you saying, sir, that those attacking London belong to the same organization as do those Japanese who are allegedly responsible for the attack on Pearl Harbor?