"They were humanitarians and statesmen, and they had a dream – a dream that became a reality and spread throughout the stars, a dream that made Mr. Spock and me brothers."
James T. Kirk, on the peace mission

The Axanar Peace Mission was a diplomatic operation at the planet Axanar in the mid-23rd century, in which Starfleet took part. It was designed to bring peaceful resolution to a conflict involving the Federation, with Garth of Izar winning a major victory in the Battle of Axanar.

Future Enterprise Captain James T. Kirk participated in the Axanar Peace Mission as a "new-fledged cadet". For his work during the mission, he was awarded the Palm Leaf of Axanar Peace Mission. (TOS: "Court Martial", "Whom Gods Destroy")

In 2268, a mentally-unstable Fleet Captain Garth was appalled at the thought that his victory led to a peace mission, claiming such missions to be the work of "politicians and weaklings". (TOS: "Whom Gods Destroy")