On a mission to establish diplomatic relations at Star Cluster NGC321, Kirk and Spock beam down to planet Eminiar 7 to learn that its inhabitants have been at war with a neighboring planet for over 500 years. They can find no damage nor evidence of destruction but soon learn that their war is essentially a war game, where each planet attacks the other in a computer simulation with the tabulated victims voluntarily surrendering themselves for execution after the fact. When the Enterprise becomes a victim in the computer simulation and ordered destroyed, Kirk decides it's time to show them exactly what war means. Written by
Did You Know?
Scotty's refusal to lower the shields against orders is based on an actual story from James Doohan
's military service. See more
The Eminians attack the Enterprise with a sonic weapon. However, sonics would not be effective against an orbiting starship, as the vacuum of space (or high atmosphere) would not conduct sonic energy. See more
I've never been a soldier, Mr. Spock, but I learn very quickly.
Referenced in Star Trek: By Any Other Name