<human>:  Why did the Anglo Saxons have to fight so much?
<bot>: The Anglo Saxons had to fight because they were constantly being invaded by the Vikings. The Vikings were very good at fighting and they were very well organized. They were also very good at plundering and raiding. The Vikings were also very good at attacking from the sea. The Vikings were very strong and very brave warriors. The Anglo Saxons were very strong and very brave warriors, but they were not as good at fighting on land or at sea.