The bombing of Stuttgart in World War II was a series of 53 air raids that formed part of the strategic air offensive of the Allies against Germany. The first bombing (by 20 aircraft of the Royal Air Force) occurred on August 25, 1940 and resulted in the destruction of 17 buildings. The city was repeatedly attacked over the next four and one-half years by both the RAF and the 8th Air Force as it had a significant industrial infrastructure (including the Daimler and Porsche automotive factories) and several military bases, and was also a center of rail transportation in southwestern Germany. The final bombing (by a lone aircraft) took place on April 19, 1945.