Advances in early-20th century technology resulted in widespread mechanisation of the military during World War I. The United States Army deployed thousands of motor vehicles in that war, including some 12,800 Dodges, and thousands of four-wheel drive trucks: Jeffery / Nash Quads, and trucks from the Four Wheel Drive Auto Company (FWD). General John Pershing viewed horses and mules as acceptable for the previous three U.S. wars, but in the new century, his cavalry forces had to move quicker, with more range and more personnel.