Marine Corps

Do construction engineers in the marine corps actually construct buildings and roads or are they for combat?

I heard that the engineers in the Marine Corps do not actually build things and that they are only used to demo things for combat. It is said that other branches like the Navy, Army and and Air force does the building.

marine combat engineers build as well as clear.
i work across the street from their schoolhouse and combat engineers learn how to build shelters and simple buildings and roads.
utilities marines learn about wiring and plumbing.

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