I was just wondering that game what I'm playing is at pretty end and I have huge fight going on with Japanese who have quite a large army. To be honest I haven't yet seen so large army in my games. They have 5-6 cities and each of them holds 20-30 or more so. Well maybe not so much but quite close.

Usually at Noble AI land is pretty easy to capture since usually city holds (at modern age) few mech. inf. maybe some siege weapons and few SAM inf. mostly up to 10 units.

I knew that AI invade behaviour or what it was called has changed and I noticed it also, but I didn't know they now build so huge reserves. Or was this odd ball 'cos other civs or those whom I encountered with didn't have so humongous stacks.

And other thing in my mind that is there error in withdraw ability, very rarely I got this opportunity when I fought with siege weapons. Seems that AI got this advance way much often than me. I might be wrong and paranoid thought :D

One thing I have noticed is that the AI's callateral damage from it's siege weapons always seems to be more than what I get. Maybe I too am paranoid.