Napoleon's practical strategic triumphs, repeatedly leading smaller forces to defeat larger ones, inspired a whole new field of study into military strategy. In particular, his opponents were keen to develop a body of knowledge in this area to allow them to counteract a masterful individual with a highly competent group of officers, a General Staff. The two most significant students of his work were Carl von Clausewitz, a Prussian with a background in philosophy, and Antoine-Henri Jomini, who had been one of Napoleon's staff officers.