http://www.grolier.com/wwii/wwii_bradley.html Omar Nelson Bradley, 1893-1981), American general, who during WORLD WAR II commanded the U. S. 12th Army Group in Europe. By the spring of 1945 this group contained 4 field armies, 12 corps, 48 divisions, and more than 1,300,000 men, the largest exclusively American field command in U.S. history.