From Halopedia, the Halo wiki
Investigation of Harvest
The Arabia was part of Battle Group 4 led by Captain Veredi of the CMA Heracles that was sent to Harvest to find out what happened to the Colonial Military Administration's scout ship Argo and Harvest. The battle group consisted of his own ship, the destroyer Heracles, and two frigates - the Arabia and Vostok. They were sent to discover the fate of the colony on the planet Harvest, where contact had recently been lost with the local populace. The Battle Group encountered a Covenant vessel holding station in Harvest orbit and the Arabia was destroyed almost instantly by the Covenant's superior firepower. All hands were lost aboard the vessel.
Its partner ship, the Vostok, was destroyed at the same time, and the badly-damaged Heracles was forced to retreat.
List of appearances