Saepon'kal (Earth-5875)

Saepon'kal was a sangheili colony in the Salia system, at the fringe territories of the Covenant. It had one moon, Malhiem.

History
After the Great Schism in November 2552, Saepon'kal became the site of a massive summit of sangheili-led Covenant fleets, including the Combined Fleet of Righteous Purpose and many ships of the Second Fleet of Homogeneous Clarity, led by Imperial Admiral Xytan 'Jar Wattinree. There, they discussed what measures to take against the treachery of the Covenant and how to strike back against the jiralhanae and the san'shyuum, while focusing on the xenomorphs and the humans later on.

However, before they could do anything, the ship, alongside all surrounding ships, were destroyed when the unggoy Kwassas accidentally triggered a voice cue in the box that contained a NOVA bomb the Sublime Transcendance had retrieved from Reach, which was then reactivated by a huragok, despite Kawassas' attempt to stop it. The resulting explosion destroyed not only all of the fleet, but also Saepon'kal and Malhiem. Because the fleet was incredibly massive, however, a quarter of the warships were able to escape. The bomb led to massive shockwaves that leveled the planet's cities and resulted in 300 mile-per-hour winds that destroyed the other part of the planet. Wattinree himself was vaporized in the explosion.

The jiralhanae were attempting to lay siege to Saepon'kal once they learned of the sangheili assembling on the planet, but once they arrived they found what remained of the fleet and the planet.