African American members of the World War II Red Ball Express repair a 2.5-ton truck while a crewman at a machine gun keeps watch for the enemy.
Photo courtesy of Army Transportation Museum

A truck driver fills a tire with air along the Red Ball Express highway during World War II.
Photo courtesy of Army Transportation Museum

Soldiers load trucks with rations bound for frontline troops.
Photo courtesy of Army Transportation Museum

A Red Ball Express truck gets stuck in the mud during World War II.
Photo Courtesy of Army Transportaion Museum.