He flees back to Denmark , ending the invasion .
King Harald Bluetooth invades Norway , pillaging south - west Norway all the way to Stad , where he encounters Haakon Sigurdsson ( the de facto ruler of Norway ) and his army .
Harald Bluetooth flees back to Denmark , ending the invasion .
King Harald Bluetooth invades Norway , pillaging south - west Norway all the way to Stad , where he encounters Haakon Sigurdsson ( the de facto ruler of Norway ) and his army .