The O-2 rank in the Marine Corps is known as which of the following?

The O-2 rank in the Marine Corps is designated as 1st Lieutenant. This rank is one step above the O-1 rank, which is 2nd Lieutenant, and serves as a part of the progression towards higher leadership positions. A 1st Lieutenant typically has more experience and responsibilities compared to a 2nd Lieutenant, and they often serve in a variety of roles, including leadership positions within units, and may even serve as staff officers that assist higher-ranking officers in decision-making and operational planning.

Understanding the structure of military ranks is crucial for grasping how leadership and responsibilities are organized within the Marine Corps, as well as the career progression paths available to officers. The rank of 1st Lieutenant serves not only as a designation but also indicates a level of trust and authority within the organization.