Who were the military leaders in Europe and Japan during these periods was it samurai or the Knights?

During the feudal periods in Europe, military leaders were primarily knights, who were mounted warriors serving lords and participating in chivalric warfare. In Japan, the samurai were the equivalent military leaders, serving daimyos and embodying a code of honor known as bushido. Both groups played crucial roles in their respective societies, shaping the political and social landscapes through their military prowess. While knights were prominent in medieval Europe, samurai were central to Japan's feudal system.