Is buying and selling German Shepherd dogs permissible (halal) or forbidden (haram), especially with the need to provide food for the dog in an insecure country?

If the dog is among those permitted to be kept, then some scholars are of the view that its sale is permissible and its price lawful, while the majority prohibit it absolutely. The fact that the sale is for providing food for the dog does not affect the ruling; for feeding it is not obligatory, and it can be released or given to someone for whom keeping it is permissible.