Khitomer Accords

The Khitomer Accords were a peace agreement signed between the United Federation of Planets and the Klingon Empire in 2293. The negotiations that would result in the accords were prompted by the Praxis Incident, which devastated the empire's ability to field an interstellar fleet and threatened the habitability of the Klingon homeworld Qonos.

The peace conference was almost derailed by the assassination of the Klingon High Chancellor Gorkon and attempted assassinations of his daughter, Azetbur, and the Federation president, Ra-ghoratreii, the result of a conspiracy of Starfleet and Klingon personnel. Ultimately, the subsequent assassinations were thwarted and the conference was a success. (STVI: The Undiscovered Country).

The Accords stipulated that the Federation would provide aid and relief to the Empire in exchanged for a sustained peace and abolition of the Federation/Klingon Neutral Zone, and would last for a period of 50 years, at which point they would expire or be renewed.