The Kingdom of the Desert, the nation of Minotaurs led by King Midas, and the Changeling Hive, still controlled by Chrysalis, have requested Equestria to act as neutral ground and mediator to help negotiate a solution to their current dispute. Since being forceful ejected from Canterlot the Changelings have been living and regrouping in the Badlands which has resulted in disputes with the Minotaurs over land and food within the desert they both inhabit.

The youngest Princess of Equestria is the one who has to handle this negotiation as the other three are busy. However Twilight is not experienced at foreign affairs and does not know how to mediate the meetings. Combine that with two nations that are already close to going to war and a peaceful solution might not be possible.