The Frontier Accord was the formal agreement between the Federation and the Gorn Hegemony following the attack on Cestus III, which led to the end of hostilities between the two powers. (DS9 short story: "Where I Fell Before My Enemy") This agreement was signed in 2281. (FASA RPG module: Star Trek IV Sourcebook Update).

This story suggests a state of war still technically existed between the two power as late as 2372 (perhaps through the events of The Gorn Crisis). The story also refers to the Gorn state as the "Gorn Alliance," a term later contradicted by ENT episode "Bound".
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