How did the lives of knights and nobles demonstrate the importance of warfare in the middle ages

The duties of knights and nobles clearly show the importance of warfare in the Middle Ages due to the fact that there main objective is to serve in the battle.  The knight was expected to be trained for a war and display courage during the battle and serves their loyalty to their lords while nobles are tied to farming which provides food to the empire.

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the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical  argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.