Why did President Roosevelt and many others believe it necessary to block German and Japanese expansion?

Chapter 26 pages 747-7811. What arguments did Americans make against involvement in the war in Europe, and how deep was anti-intervention sentiment? Why did President Roosevelt and many others believe it necessary to block German and Japanese expansion? What steps did Roosevelt take to increase U.S. involvement short of war?2. Assess how mobilization for World War II altered life in the United States. How did the war affect families? How did it shift the regional balance of the economy? What opportunities did it open for women?3. Did World War II help or hinder progress toward racial equality in the United States? How did the experience of Japanese Americans, African Americans, and Mexican Americans challenge American Ideals?4. What role did advanced science and technology play in World War II? How did the scientific lead of the United States affect the war’s outcome?Chapter 27 pages 781-8101. As described in the opening of the chapter, what housing choices were available