“Pour It On!” by Garrett Price for the War Production Board, 1942. As the United States geared up for war following the attack on Pearl Harbor, American factories rapidly converted to defense production. Operating around the clock, they turned out equipment by the thousands and millions, from airplanes and tanks to bullets, bandages, and GI socks.Image via Prints and Photographs Division, Library of Congress. “WOMEN There’s work to be done and a war to be won … NOW!” U.S. Employment ServiceWar Manpower Commission,1944. Illustrated by Vernon Grant.