Sith war (Old Republic)

Sometime following the Hundred-Year Darkness and the exile of the rogue Jedi to Moraband, a war broke out between the newly formed Sith Order and the Old Republic, during which Coruscant became a contested battleground between both factions.

History
Roughly seven thousand years before the Battle of Yavin, a group of Jedi rebelled against the Jedi Order, believing that following the way of the Dark Side was the key to unlocking their full potential. This led to a schism in the Order. Led by a rogue Jedi, this group rebelled against their former brothers and sisters, igniting a conflict known as the Hundred-Year Darkness. In the end, the rogue Jedi lost, and they were exiled from Republic space. Eventually, they found themselves on the desert world of Moraband, where they founded the Sith.

Sometime later, the Sith would return to the Republic, stronger than ever and at the head of a massive empire, prepared to wage war against both the Republic and the Jedi Order once more. During this war, both the Jedi and Sith constructed massive superweapons powered by kyber crystals.

During the war, the Sith attacked attacked Coruscant, the capital of the Old Republic. The Sith managed to construct a shrine of immense power on a mountain at the heart of the planet. The world became a contested battleground between both factions until the Jedi managed to drive the Sith armies off of the world, managing to contain the dark energy. Roughly a millennium later, the Jedi would construct a temple above the site of the shrine, which later became the center of the Order.

Although the Jedi emerged victorious during the conflict, numerous other wars against the Sith would occur over the next four thousand years, all of which would bring about the fall of the Old Republic

Appearances
Tarkin