Ronara Prime

From Memory Alpha, the free Star Trek reference

Ronara Prime
Ronara Prime from orbit
Location:	Demilitarized Zone

Ronara Prime is an inhabited planet in the Demilitarized Zone.

In 2370, Lieutenant Ro Laren was sent to Ronara on an undercover mission to infiltrate the Maquis. She was masquerading as a Starfleet fugitive, and successfully caught the attention of Santos, who brought her to a Maquis colony. (TNG: "Preemptive Strike")

The species represented in the Ronara bar included Bajorans, Klingons, Kobliad, and Vulcans. There was also a person in a Pakled costume, but lacking Pakled make-up.