The Red Ball Express was a famed truck convoy system that supplied Allied forces moving quickly through Europe after breaking out from the D-Day beaches in Normandy in 1944. In order to expedite cargo to the front, trucks emblazoned with red balls followed a similarly marked route that had been closed to civilian traffic. These trucks were also given priority on regular roads.
The system originated in an urgent 36-hour meeting and began operating on August 25, 1944, staffed primarily with African-American soldiers. At its peak, the Express operated 5,958 vehicles, and carried about 12,500 tons of supplies a day. It ran until November 16, when the port facilities at Antwerp, Belgium, were opened, some French rail lines were repaired, and portable gasoline pipelines deployed.
Use of the term "Red Ball" to describe express cargo service dated at least to the end of the 19th century. Around 1892, the Santa Fe railroad began using it to refer to express shipping for priority freight and perishables. Such trains and the tracks cleared for their use were marked with red balls. The term grew in popularity and was extensively used by the 1920s.
The need for such a priority transport service during World War II arose in the European Theater following the successful Allied invasion at Normandy in June 1944. In order to hobble the German army's ability to move forces and bring up reinforcements in a counter-attack the Allies had preemptively bombed the French railway system into ruins in the weeks leading up to the D-Day landing.
After the Allied breakout and the race to the Seine River, some 28 Allied divisions needed constant resupply. During offensive operations, each division consumed about 750 tons of supplies per day, totaling about 21,000 tons in all. The only way to deliver them was by truck – shortly giving birth to the Red Ball Express.
At its peak, it operated 5,958 vehicles and carried about 12,500 tons of supplies per day. Colonel Loren Albert Ayers, known to his men as "Little Patton," was in charge of gathering two drivers for every truck, obtaining special equipment, and training port battalion personnel as drivers for long hauls. Able-bodied soldiers attached to other units whose duties were not critical were made drivers. Almost 75% of Red Ball drivers were African Americans.