Inauguration of Twilight Sparkle

The inauguration of Twilight Sparkle takes place in the Golden Oak Library in Ponyville as a private ceremony held there to officially reinstate Twilight Sparkle as the ruler of Equestria, and is only attended by the Mane Six, Princess Celestia and Princess Luna, which takes place after the USRAC War was over.

After the inauguration, Celestia becomes the Minister of Arcane Sciences for Equestria's war effort while Luna became an Equestrian ambassador to the United Nations.

Soon, Shining Armor began working as an Equestrian ambassador to the United States, Starlight Glimmer as an Equestrian ambassador to the European Union, and Princess Cadence as an Equestrian ambassador to the Asian Federation.

Despite Twilight Sparkle's promises for harmony, her second reign is much harsher than that of Luna and Celestia's (due to a state of emergency/war that had been declared since the Gerasecian Invasion of Equestria).