Final answer:
The two warrior classes of feudal Europe and Japan used to protect the peasant class were knights and samurai.
Step-by-step explanation:
The two warrior classes of feudal Europe and Japan used to protect the peasant class were knights and samurai.
In feudal Europe, knights were skilled warriors who served their lords and protected the peasants. They were heavily armored and fought on horseback.
In Japan, samurai were the warrior class who served the daimyo (feudal lords). They followed a code of honor known as bushido and were skilled in martial arts and warfare.
Learn more about warrior classes