Starfleet is divided into four major branches, each of which encompasses a myriad of smaller divisions.

The branch structure of Starfleet is present at every level of the organization, from the career path chosen by individual officers to the order of entire fleets and starbases. This division between the branches is often not clear-cut. For example, engineers pursuing a career in Research & Development may find themselves serving alongside security officers from Strategy & Defense aboard a starship operated overall by a Science & Exploration branch of Starfleet. This meshing of the branches is strongest among the higher echelons of Starfleet Command, where career paths of all branches eventually lead to positions in the Admiralty.

Despite their close interaction and cooperation, the four branches of Starfleet represent distinct organizational structures and interest groups, with vast assets under their control. The distribution of power and influence among them is in constant flux and has caused notable shifts in Starfleet's deployments, design philosophy, and mission statement over the course of its history.

Starfleet's Branches summarized:

Administration and Relations
Associated Career Path: Command

This branch is responsible for the logistics and administration of Starfleet's assets, being its bureaucratic backbone. In addition to allocating resources and personnel, this branch also manages relations between Starfleet and the Federation Council, its members, and sovereign organizations within the Federation.

Science and Exploration
Associated Career Path: Science

The most prominent branch of Starfleet, and for much of the early 24th century the leading voice, is Science & Exploration, responsible for deep space exploration missions, stellar cartography, first contact, and unknown phenomena.

Strategy and Defense
Associated Career Path: Security

The Strategy & Defense branch of Starfleet is responsible for the security of Federation Space, guarding the Neutral Zones, and conducting all quasi-military operations.

Research and Development
Associated Career Path: Operations/Engineering

The R&D branch of Starfleet encompasses all divisions responsible for the building, maintenance, and development of infrastructure, technologies, and federal projects at large.

Star Trek Eclipse - Star Trek fan art.

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