The War For Surra (example)
A pride of magical cats has lived in the lands of Surra for generations, living off of the lush lands and surviving through the droughts in peace and harmony.
However, tensions arise when a large pack of magical canines migrate nearby, looking for resources to survive in the current drought. Now food and water are scarce for both canine and feline, and the feline pride blames their new residents for it.
It is not certain who made the first attack, but both cat and canine are at odds with one anothe/