Second Lieutenant

Second Lieutenant is a military rank, the equivalent of which is used by the service organizations of many civilizations.

Use in Starfleet's Marine Corp

The rank of ensign is usually the first commissioned rank assigned to new marine officers fresh out of the Starfleet Marine Academy). The rank is equivalent to the Star Fleet Rank of Ensign.

Second Lieutenants often serve as specialised Squad Leaders or as Platoon Commanders where they can look after anything from 8 to 32 marines. On Starfleet vessels that only carry a small marine detachment a Second Lieutenant may serve as the Marine Executive Officer or in some cases even as the Marine Commanding Officer.

Advancement

A Second Lieutenant is usually promoted to the rank of First Lieutenant after 24 months of service in Starfleet's Marine Corps.