What military rank does O-2 translate to in both Navy and Marine Corps?

The rank of O-2 in both the Navy and Marine Corps is Lieutenant Junior Grade. This rank corresponds to officers who have successfully completed their initial training and are beginning to take on increased responsibilities within their units.

In the Navy, the rank just above Ensign (O-1) is Lieutenant Junior Grade (O-2), which is a distinct position that reflects a degree of experience and leadership capability. This structure is crucial in ensuring that officers can progress in their careers, as it allows them to gain more exposure and responsibility, setting the stage for promotion to higher ranks.

Meanwhile, in the Marine Corps, the equivalent rank for O-2 is First Lieutenant, which is not interchangeable with the rank designations used in the Navy. This distinction is important as it highlights the variation in rank naming conventions between the branches of the service.

Thus, considering the context of the Navy and Marine Corps and the definitions of the ranks, Lieutenant Junior Grade is indeed the correct identification for the O-2 rank status in both services.