The correct answer is: We have to be prepared for raids from ferocious invaders from Scandinavia.
In Medieval times, the people living on the western coast of Europe, lived in fear because of the permanent menace of the raids by the Vikings, the invaders from Scandinavia.
The Vikings were Warriors and great sailors, known for his big size, strength, and brutality. They were very violent and always used the force to defeat its enemies. They robbed and took slaves.
