[Lazy_Perfectionist]

Foul Air may be nice... Incredibly slow, but nice. And not readily available to you.

How good are these giants at sieges? Can they be starved easily? I know I tend to take death scales as Agartha and I have a province as low as 86 food- and this is only two provinces distant from my capital. Size five, 30 Niefels, 120 food? You could probably starve them.

On the other hand, with a strength of 25, they'd have a siege strength of 6.25 x 30, or 187. It would be difficult (though not impossible) to hold off that force, but if your armies will be defeated in the field, than why not fort up? (other than losing the chance to counter-raid).