Entering service in 2536, the year the Covenant glassed the last of the Outer Colonies, the UNSC Spirit of Anzac had a less-than-stellar start to its combat service, participating in a number of engagements against the Covenant as they began their seemingly-inexorable push into the Inner Colonies. Serving as part of the UNSC 30th Fleet, the Spirit of Anzac has participated in a number of well-known theatres, such as Draco III, Delta Pavonis, the Minorca campaign, the defence of Earth, and throughout the War of Vengeance.