You should have acted. They're already here. The Elder Scrolls told of their return. Their defeat was merely delay until the time after Oblivion opened, when the sons of Skyrim would spill their own blood. But... there is one they fear. In their tongue he is Dovahkiin; Dragon Born!
In Oblivion you hardly met any fellow travellers on the roads. Things have changed in Skyrim. You will meet travellers, quest-givers, traders and all sorts of interesting people on the roads of Skyrim. This is the site of a battle between Legion and Stormcloak patrols who had just happened upon each other along a road in Skyrim.