Mengenite

The Mengenites were a civilization native to the Mengen star system in the Alpha or Beta Quadrant, in the vicinity of Sol in Federation space in the 23rd century.

The Mengenites were a sovereign group that were not a member of the Federation by the year 2270. Commander Paul Burch of Starfleet feared that the power schemes of Vice Admiral Vaughan Rittenhouse were a threat to sovereign civilizations like the Mengenites.