Who was the Prussian that volunteered his services to General Washington and helped the Continental Army become fierce fighters? Marquis de Lafayette
Baron Friedrich Von Steuben

Correct answer is Baron Friedrich Von Steuben .

Explanation:

Marquis de Lafayette  was a famous French revolutionist, who also played an important role in the American revolution. He was even on of the closest advisors of general Washington and participated in some important battles also.

Baron Friedrich Von Steuben  was a famous general from Prussia who came to learn the soldiers of Continental Army the adopt the so-called European style of fighting. His influence on the army was remarkable.

explanation:

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answer; william penn's approach made the colony diverse by attracting many types of people and religions;