When The Lights Go Out
Dwarves are an industrious race that generally lives in mountain citadels that they have built with centuries, maybe even millennia of effort.
They have had some difficulties with humans due to the humans’ expansionistic tendencies, as well as some innate bigotry on their part, as both races believe they are superior to all other races.
There have been a number of minor wars between them, with the most recent having ended with a decisive human victory just 50 years prior. The human reaction to this victory has bred a large amount of ill will amongst the dwarves, and they have been slowly and systematically removing humans from their communities via social pressure.
The majority of dwarves don’t believe in the draconic prophecies, but being a cautious race, they see no reason not to take precautions. Especially since they live underground anyway.