Common Inspection Practice Test

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Which Commandant served as the Marine Corps for 39 years?
Correct Answer:
Lejeune
Explanation:
Long tenure in the top leadership position is what this item tests. Archibald Henderson led the Marine Corps from 1820 to 1859, a total of 39 years—the longest commandant tenure in Marine Corps history. That extended period of steady leadership helped shape and professionalize the Corps, earning him the nickname “Grand Old Man of the Marine Corps.” The other figures listed served much shorter terms, so Henderson’s 39-year stretch makes him the correct choice.

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