Supplies - Sending an army that will not starve ?

[LDiCesare]

You can see how much supply you use in any province in the province description. What you can't see is how many sipplies a province you don't own has. Even with a scout, but I think spies can give you the info, and maybe your dominion or at least your dom if you're playing Arco. Not sure about scrying spells.