Kor led a battalion of Klingons to occupy the neutral, but strategically located, planet Organia in the TOS episode "Errand of Mercy" and appointed himself military governor over the planet. Unknown to Kor, Kirk and Spock were among the population subjugated, and they proceeded to launch a guerilla raid on the Klingon holdings on the planet. The Organians refused to let harm to come to either side. They refused to fight the Klingons, but they also prevented the Klingons from harming Kirk and Spock. Kor attempted to persuade them by killing hundreds of their citizens, but they remained unconcerned.
It turned out that the Organians had "evolved" into energy beings, and they put an end to the hostilities between the two space powers. Kor lamented not being able to see the "glorious" war between the Klingons and the Federation. And thus we see the early stages of two idiotic sci-fi brain bugs.