Do I just leave them stacked with the armies I want supplied? Does that happen automatically - that they re-supply units they're stacked with? Is that the only way they will re-supply those units? Can they re-supply units they're not stacked with, if so how? Do they need to be in the same region as the target unit? Or can they do it from a distance?
When they run low, do I need to move them into other regions to stock up (when they run low), and does that happen automatically? Then what? Move them back into the stack with the units to be resupplied?
The manual is sketchy, I think. Any help appreciated.
Thanks.