The fighting force on board the Danish ships had been largely reinforced by their countrymen of East Anglia, and in a close body they rowed out to give battle to the Saxons. A desperate fight ensued, but after a struggle, which continued for many hours, the Danes were completely defeated, the whole of their vessels were captured, and all on board put to the sword.
On the following day the army landed and ravaged the surrounding country and returned to the ships with much booty. As they sailed out of the river they saw a vast fleet of the enemy approaching. Athelstan had assembled his ships from all the ports of East Anglia, and had been joined by a large reinforcement of his countrymen from France. The Saxons were greatly outnumbered, but a portion of the fleet fought with great bravery. Some of the ships, however, being manned with newly-collected crews unaccustomed to naval war, lost heart, and made but a poor resistance.
Alfred was on board the Dragon, which sank several of the Danish galleys, and with some of her consorts continued the fight until nightfall, beating off every attempt of the Danes to board them. Seeing that several of the ships had been captured, that others had taken to flight, and that there was no longer a hope of victory, Alfred gave the signal, and the Dragon and her remaining consorts fought their way through the Danish fleet and made their escape.
The valour which the Saxons had shown in these two sea-fights, and the strength of the army with which Alfred had so speedily marched to the relief of Rochester, greatly impressed the enemy, and although Rollo came across from Normandy to the assistance of Athelstan, the Danes concluded that it was better to leave the Saxons to themselves.
Alfred in the following spring again assembled his army and laid siege to London, which was still in the possession of the Danes. Athelstan did not venture to march to its assistance, and the town, which had long been in the Northmen's hands, was captured. The greater portion of the city was burned in the siege. Alfred ordered it to be rebuilt, invited its former inhabitants to return, and offered privileges to all who would take up their abode there. The walls were rebuilt, and the city placed in a position of defence. Alfred then handed it over to Ethelred, the ealdorman of Mercia.
Peace was now made with Athelstan, and for some years remained unbroken. In 893 a Danish fleet of 250 ships sailed across from Boulogne and landed in the Weald of Kent, which was then covered with a great forest, and there wintered, while the viking Hasting with eighty ships sailed up the Thames and built a strong fort at Milton.
Alfred stationed his army in a strong position half-way between the forest and the Danish camp at Milton, so that he could attack either army when they moved out of their stronghold. The Danes for many months remained in the forest, issuing out occasionally to plunder in the open country of Kent, Sussex, and Hampshire, but they met with a stout resistance from the Saxons who had remained in the towns and country.
After Easter, having collected a considerable amount of spoil, and finding the resistance ever increasing, the Danes moved northwards from their forest, intending to march into Essex. The king's forces at once set off to intercept them, and overtook them at Farnham, where the Northmen were completely defeated. All their booty was recaptured, with their horses and stores. Those who escaped fled across the Thames and took refuge on an island in the Colne. The Saxons besieged them there; but when the Danes were about to surrender from want of provisions the news arrived that the Northmen of Northumbria and East Anglia, with 240 ships, had landed suddenly in Devonshire, and had laid siege to Exeter.
The siege of the island was at once raised, and King Alfred marched against the new arrivals, and advancing with great speed fell upon them and defeated them. Then hastily returning he came to London and, joined by a strong force from Mercia, marched against Milton, where Hasting had been joined by the great number of the Danes who had formed the army in the Weald. Hasting himself was away, but his army marched out to meet the Saxons.
A great battle was fought, but the Danes could not resist the ardour of their assailants. Their army was routed and their fortress stormed. All the booty within it fell into the hands of the victors, together with the wives and families of the Danes, among whom were the wife and two sons of Hasting. The Danish fleet also was captured, and was burned or taken to London. Another great fleet of the East Angles and Northumbrians sailed up the Thames, and landing, the Northmen marched across to the Severn, but were defeated and destroyed by Ethelred of Mercia.