Alright I beat Ulather, got the chests, took out 2 demon portals, Now I'm trying to assault the last demon portal (SOUTH) but can't seem to get to the demon portal or chests any suggestions? BTW all the trees are gone chopped em up for wood, most of the iron and lenya as been picked same with the stone. those level 25 demons are really starting to get annoying because I can't seem to take them out.

1) You can't make troops at all? Really the only way I do them is throw an army at them, and while they are killing my army my avatar is taking down gate 1. Rebuild army, take out gate 2, etc.

2) If you really are stuck, destroy everything else, exit map and re-enter and it starts over, but then you just have those 3 portals instead of everyting. Rebuild base and finish wiping out the last 3 gates.

Don't destroy the Demon Portals. You don't have to. They are guarded by level 33 enemies which is complete overkill. They are designed so you can't really beat them. It is possible to destroy them, but it is extremly hard to do so and it's not worth it.