@golgaloth I've put Dwarves and Elves against each other in my current fantasy wip because it's SO classic. I couldn't resist.

They don't get along because the Dwarves have incalculable wealth but no social interest in its value, whereas Elves are a colonialist empire in constant need of financing. The Elves constantly come up with reasons to attack the Dwarves and the Dwarves are like "omg we're just digging holes go away"