The Boraalans are a humanoid race native to the planet Boraal II. As of 2370, they had reached a level culture comparable to medieval Europe, and had been under sociological study by Federation observers for several years. One of the observers, Dr. Nikolai Rozhenko, violated the Prime Directive by interacting with the Boraalans and fathering a child with one of them.
In 2370, the atmosphere of Boraal II was lost, and the race killed with the exception of one village, which Rozhenko had transported to the USS Enterprise-D, and then relocated to planet Vacca VI.
Shortly afterwards, Doctor Carol Abramowitz was asked by Starfleet Commander Uxmen for recommendations on how to respond to this violation of the Prime Directive. Abramowitz concluded no actions should be taken.