The battle was waged across the planet, from the industrial to political centers, and even the underworld, killing an untold number of civilians.
Once it became clear that the Sith would be invading the planet, the New Jedi Order retreated and left the Alliance to fight for itself, though some Jedi did remain on Coruscant to fight. After having fought for two years, the Mandalorians made a push, at the behest of the Sith, into the Core Worlds to clear a path to Coruscant. The Battle of Coruscant was a pivotal engagement between the Galactic Alliance and the New Sith Imperium during the Third Galactic Civil War. Save yourselves and may the Force be with you.”― Nathanaeu Bastele