The Conquest of Manaan represents a conflict that occurred on the Inner Rim oceanic planet of Manaan in 13,220 BBY. This planet, positioned within the region under the influence of the Grand Companies—trading organizations operating along the hyperlane called the Spin and supported by Coruscant, the capital planet of the Galactic Republic—was located on hyperspace paths dominated by Coruscant.
The Conquest of Manaan occurred late in the Fourth Alsakan Conflict; this war had begun approximately six centuries prior, continued for an additional twenty years, and formed part of a series of wars spanning fourteen millennia fought over political power within the Republic between Alsakan, Coruscant, and their respective affiliated powers.
The reference book The Essential Guide to Warfare, written by Jason Fry together with Paul R. Urquhart and published in 2012, introduced the Conquest of Manaan.