U.S. Navy - Help your country! Enlist in the Navy" 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
The poster eschews human figures to focus entirely on the immense scale, power, and atmosphere of the ocean and the fleet. It evokes a sense of awe, adventure, and patriotic duty.
Steal this when
Selling the sheer scale and dramatic environment of an experience rather than focusing on the individual actors.