Battle of Sunaion

The Battle of Sunaion was a large battle fought between the Swords of Sanghelios and the Covenant in 2558. It was one of the final battles of the war and saw the near defeat of the Covenant.

Background
In 2558 the Swords of Sanghelios attacked Sunaion, the Covenant's final major stronghold, they sent in various warships, Liches and Phantoms. The Covenant suffered heavy losses and were pushed out of Sunaion. Fireteam Osiris was deployed to the city in the midst of the battle by Thel 'Vadams Lich and were tasked with locating the AWOL John-117 who was on a Guardian construct near the city. However the Warden Eternal stopped them from getting to it.

Appearances

 * Halo 5: Guardians