Book excerpt: Just as Detroit symbolizes the U.S. automobile industry, during World War II it also came to stand for all American industry's conversion from civilian goods to war material. The label "Arsenal of Democracy" was coined by Pres. Franklin D. Roosevelt in a fireside chat radio broadcast on December 29, 1940, nearly a year before the United States formally entered the war. Here is the pictorial story of one Detroiter's unique leadership in the miraculous speed Detroit's mass-production capacity was shifted to output of tanks, trucks, guns, and airplanes to support America's victory and of the struggles of civilians on the home front.