Battle of Sargasso

The Battle of Sargasso was fought between the United Nations Space Command and the Covenant Empire in 2546 on the UEG colony world of Sargasso. It was during this battle that UNSC forces first encountered the Type-46 Spectre ISV being used by the Covenant.Halo: The Essential Visual Guide, page 184
==Sources==
Category:Covenant Victories in the Human-Covenant War