Taking advantage of the lack of powerful force users upon the planet the Sith had hidden operatives in various locales for years, when the time was right suicide bombings were completed across the cityplanet's surface spreading chaos and disarray across the planet. The resulting damage upon Coruscant was enough to cause concerns amongst the people of the New Republic and caused for the immediate secession of member planets of the Triumvirate from the Galactic Senate and the departure of the New Jedi Order from Coruscant.