This episode has two Star Trek: Deep Space 9 connections. Spencer is played by actor Andrew Robinson, who portrayed Garak. Tynan is played by actor Michael Dorn, who portrayed Worf. They reportedly had great fun working together again, this time, without the prosthetic makeup.
For several hundreds of years the military battle phrase 'no quarter' meant no mercy, no prisoners, kill all the defeated soldiers. Today, that policy is deemed a war crime and a crime against humanity.