Meridian

From publisher blurb:

Centuries ago, peaceful coexistence between the Azuari and the Kestrans degenerated into political infighting and sectarian violence. The establishment of a border by the interstellar government quelled the strife, but a visit by a team of surveyors — which includes the PCs — threatens to reopen old wounds. How does an easy job reestablishing a boundary become a nightmare of civil turmoil, violent protests, and the prospect of war; and are the heroes in a position to do anything about it?

Meridian is a short adventure for 2D6 science fiction RPGs such as Cepheus Engine and the Original Science Fiction Roleplaying Game (OSFRPG.)