It reminds me of the Vikings. They would plunder throughout Europe including modern day France. It got so bad that the coasts ended up practically abandoned. T

It reminds me of the Vikings. They would plunder throughout Europe including modern day France. It got so bad that the coasts ended up practically abandoned. The rich and weak Frank empire, a bad combination, resorted to the disastrous policy of bribing the invaders to leave. It only served to mark the Franks as a good target and emptying the treasury. The Vikings would leave, plunder some other place and come back for more. In the end, the Franks ended up giving part of their land on the coast : Normandy. This served to settle the invaders down while making THEM have to protect their newly acquired territory against other vikings.