Sirius Expeditionary Squadron, also known as Sirius Squadron, is a squadron centered around the Odyssey-class USS Sirius under the command of Commodore Matt Rourke, based out of Gateway Station in the Midgard Sector on the Federation’s Beta Quadrant frontier. The squadron serves two missions: the secondary mission of supporting the sector-wide responsibilities of the Gateway Station, and its primary mission as a rapid deployment force beyond Federation borders.

In its expeditionary capacity, Sirius Squadron stands ready to deploy outside of Federation territory at short notice to respond to emerging situations across the galaxy. With multiple versatile and powerful ships at its disposal, the squadron is capable of operating independently and without support for extended periods, and is flexible enough to face a range of missions, including under volatile circumstances where objectives and conditions can quickly change.

Outside of such deployments, the squadron maintains readiness in case of need, and supports Gateway Station’s operations. From its HQ, its ships pursue Starfleet’s mission to maintain regional stability through diplomatic and humanitarian operations and pursue avenues of scientific research and exploration into the former territories of the Old Romulan Star Empire. Since the escalation of tensions with the Klingon Empire and their interest in the territory of the fallen Star Empire, Sirius Squadron has been a cornerstone of protecting both the Federation border, and Starfleet’s allies in the Romulan Republic.

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