Battle of XI Boötis A (Earth-5875)

The Battle of XI Boötis A was one of the first major battles of the First Contact War, fought between the UNSC's Third Fleet under the command of Admiral Preston Cole and twelve warships of the Covenant. During the battle, Cole was able to destroy the eight Covenant warships, but at the cost of nearly half of his fleet. It was one of the rare naval victories for humanity.