And the daimyo, in order to conquer land or to protect their own land, they would support a warrior class known as the samurai. And so they would take their agricultural surplus from their lands and use that to support this warrior class. And this warrior class, the samurai, they were analogous to knights in medieval Europe. And just as the knights had chivalry in Europe, the samurai in Japan had bushido, which eventually emerges as their code of conduct. Despite that decentralized nature, they were able to fend off invasions from Kublai Khan. So as we've mentioned in other videos, in the 1270s, Kublai Khan is conquering much of China, and he also attempts to conquer Japan. This right over here is a picture of the Mongols shooting arrows at a samurai warrior.