Answer: Explanation Below
Step-by-step explanation:
To be honest, similar in some ways.
A feudal Japanese soldier, normally known as samurai, were a warrior caste containing generally nobles. Because of this, they were able to learn a variety of arts, such as horseback riding, swordsmanship, spearsmanship, archery, and martial arts.
An American soldier (or any soldier, really, European soldiers have similar training) learns Martial arts, shooting, strategy, and depending on your unit, piloting, driving, firing artillery, or survival.
Both have training that are designed to be versatile, with the only difference is that samurai learn everything, while a soldier will most likely be specialized at one field.