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ONI Recon 111 was stationed nearby Voi during the Battle of Kenya in November 2552. It was tasked with reporting Covenant activity near the ruins of the city of Mombasa, which had been glassed by Covenant warships.
ONI Recon 111 reported to Commander Miranda Keyes that the Covenant Cruisers had found something within the crater they were digging. Keyes ordered them to retreat shortly after they reported. Later, Fleet Admiral Hood ordered a strike on the Covenant forces to stop them from activating The Portal in the crater.
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