Peace was a state of being free from conflict.
History and specifics
In the 23rd century, Biluddin mountain on the planet Alpha 332 was worshipped as a god of peace by the humanoid Parracas. Increasing volcanic activity was regarded as a sign that it did not approve of war. (TOS comic: "The Gods Have Come!")
In 2270, Admiral Traynor gave a speech to newly graduated Starfleet ensigns in which he said, "Never forget that Starfleet's mission is to keep peace in the galaxy. Use force only when everything else has failed." (TOS - Which Way Books novella: Voyage to Adventure)
- TOS movie: The Undiscovered Country
- TOS comic: "The Cosmic Cavemen"
- TOS - Which Way Books novella: Voyage to Adventure