New York Times best-selling author and Pulitzer Prize finalist Arthur Herman pens this fascinating look at how two businessmen turned the U.S. into a military powerhouse during World War II. In 1940, FDR asked General Motors CEO William Knudsen to oversee the production of guns, tanks, and planes needed for the war. Meanwhile, industrialist Henry J. Kaiser presided over the building of "Liberty ships"-vessels that came to symbolize America's great wartime output.