@KazutoKatsuragi
That is just it though. His reasoning is full of holes.
-"Give me food or we will declare war"
Ok, you and your dying of starvation army can just go and fuck off then. Hope the hike to the borders doesn't completely ruin your entire territory.
-"You fed us food which goes against our religious beliefs, make this up to us or we will leave."
Says the guy who can't feed his territory, and came unannounced.
-"You help us out now, and we will in the future help you if you need us to."
Sure thing pal, is that help comming before or after you make even more demands later while still threating war? Oh, and exactly how are you planning to help us with your malnourished and soon to be if not already impoverished nation?
If you ask me, this asshole is just looking to start shit so he can either siphon the kingdom of their resources into his own, for free, or an excuse to declare war and not be labeled as being the aggressor. Best answer is to just send him away. There isn't any benefit to helping him at all that is a solid guarentee.