He did his duty. 'No finer military organization than the Marine Corps exists in the world.' George Dewey. Admiral of the Navy. Will You? Join for active service land and sea. U.S. Marines. Apply at" poster
The pattern
This still is filed under Recruiting duty offer.
Define
Join us, framed as who you become, not as a job listing.
Mechanism
Identity offer. The role is a self. Benefits are secondary to the person you will be after you say yes.
Verdict
We are recruiting into a hard, proud, or transforming role: service, craft, a company with a real culture.
Why it works
It uses a respected military authority figure to validate the elite status of the Marine Corps, and pairs it with a direct challenge to the reader's sense of duty.
Steal this when
You have an endorsement from an unimpeachable authority figure and want to challenge the audience to live up to a high standard.