From His Supreme Dreadfulness, Protector of the Nogaia, King of Yakot and Overlord of the Kele, Selasikas Karos, Scion of the Unspeakable King
To the Monarchs of Fula and Patu
I am not my mother.
My mother lusted after a dying priest, and lived a strange fantasy as he died of ritualistic backlash (too many hallucinogenic drugs). When he died, she claimed he was the Unspeakable King reborn, and launched this despicable attack on you. Meanwhile, she ordered me to be cooked like a pheasant, and only through regrettable means was I able to dodge this fate.
I will do what you asked, however, I will also do more.
You see, the Kings of Yakot have always been paranoid of the Fisofi. Within our new walls are many, many acres of fertile gardens, feeding nearly half of our city itself. Fishing feeds another third. Our granaries, scattered throughout the city near the old walls are full to the brim with grain and nonperishables, to be cycled with fresh as the seasons wear on. As of now, a single city's farmland and two city's citadels have to support two cities' worth of degate. Do not kid yourselves, there is not enough food to go around. The Suigaia are hit as hard as we are, and their food prices are simply exorbitant. For the good of all Nogaia, I offer this deal:
In return for 1) sending priests to help me erase the Selasi of my mother from the heavens and for pardoning the terrible conduct of her iness, as well as 2) accepting my daughter Farzu's hand in marriage into your alliance, I shall lay 1EP's worth of grain outside the city, to be guarded by a single unit of militia on it. Send barges to pick it up and feed your beseiged inhabitants. This is no trick because 1) it is on nuetral ground, my militia can't overpower any guards you send with your barges, while I can trust that the barges won't stream up the harbor into my citadel and 2) I am NOT my mother, may the Dread Citadel spite her name.
I will of course position more militia to prevent the Fisofi from seizing these supplies, as well as attack them as you suggested.