Answer;
Samurai
Step-by-step explanation;
Samurai is a word that means "one who serves". They were soldiers of a Daimyo that were professional soldiers employed by a Lord. Apprenticed at an early age and taught combat skills in archery and swordsmanship. In exchange for dedicated service he was given grants of land. Lived by the Code of Bushido. They fought on foot and on horseback.
The samurai were Japanese warriors. They were members of the important military class before Japanese society changed in 1868.