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?
According to David Gerrold, the computer tallies of war dead in this episode was a statement about Vietnam War deaths that began to be registered on nightly newscasts in 1967. 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
Is he alive? Pity. A man like that would've preferred to die fighting.
Referenced in Star Trek: By Any Other Name