While the Realm is not a particularly martial place (at least these days), there are still some gaardrails in place to avoid chaos
A peacekeeping force from the capitol city of Triwath that Tharbad is happy to have to keep the city tourist-friendly, with very little work on their part
The great war between the Giants and Dwarves that changed Jotunheim forever, and the entire way of life for the Dwarves