I would be diplomatic to a degree - the Vikings would use both strategy as well as brute force. My enemy's enemy is my friend, so I would make sure to stir up a bit of doubt and deceit, play people against each other, and then step in with force when the time is right. If the gods value one thing it is a cunning and bold plan! And should I fall I can only hope Odin has taken notice and send his Valkyries to take me to the great halls of Valhalla to feast, fight, fall, and rise again until I am needed for Ragnarok.