Which phrase best describes the purpose of a Navy service stripe?

The phrase that best describes the purpose of a Navy service stripe is that it signifies length of service. Service stripes are worn by enlisted personnel on their uniforms and are used to indicate the total length of active service in the Navy. Each stripe typically represents a specified number of years of service, allowing for a visual acknowledgment of a member's dedication and experience in the military. This feature is part of the Navy's effort to honor and recognize the commitment of its personnel over their careers.

While personal achievements, specialized training, and recreational achievements are important aspects of a service member's career, they are acknowledged through different awards, badges, and decorations rather than service stripes. Therefore, their purpose is distinct and does not align with the primary criteria for awarding a service stripe.