Æthelred of Wessex of Mercia, appealed to him for help against the Vikings. Æthelred and his brother, the future Alfred the Great, led a West Saxon army to Nottingham, but there was no decisive battle, and Burgred bought off the Vikings. In 874 the Vikings defeated Burgred and drove him into exile. In 870 the Vikings turned their attention to Wessex, and on 4 January 871 at the Battle of Reading, Æthelred suffered a heavy defeat. Although he was able to re-form his army in time to win a victory at the Battle of Ashdown, he suffered further defeats on 22 January at
Battle of the Abas battle is noteworthy for Pompey's concealment of his infantry behind a screen of cavalry, which would twenty years later be used against him at the Battle of Pharsalus. The near perfect double envelopment Pompey is reported to have here achieved also serves to showcase the high quality of his generalship during the Eastern campaigns. Having defeated Mithridates and Tigranes of Armenia, Pompey then turned to neutralising Mithridates' remaining allies to the north, in Caucasian Albania and Iberia. In December 66 BC, the Albanian king, Oroeses had pre-emptively attacked the Roman forces but been defeated and then forced to submit. In