As previously pointed out, this task can be divided into 2 things. Defending against a commando raid and defending against an army. About the commando raid I don't have any suggestion, but against the army I do have some.
I would like to use a tactic that was used in the Alps in WOI. That is, dropping avalanches on top of that army. First make shure that you're the one who controlls the weather. Make with the weather a ring of hard winter around your fortress and make shure that the mountaintops are covered with loads of snow. Then when the whole army is in a valley, preferably asleep, use something like soundburst (in WOI they used mortar-shells) to create avalanches. I don't think the common goodie-good guys can outrun an avalanche or survive having 4 meters of snow on top of them.
Of course this is the ideal moment to send in some (expendable) forces so the few survivers can't rescue those burried ones. Hell, you might even send in a few BEFORE the avalanche.
Also, this is an ideal moment to send your petdragon on a raid to kill off those 1600 odd wagons supplying the now reduced army. One good aimed breath on each wagon will do just fine..
Now alot of those goodie-good-doers are burried alive and those who survived only have the equipment they had picked up while running from that avalanche. Might be a good time to send in your epic forces to make shure their champions didn't survive either.
I would like to use a tactic that was used in the Alps in WOI. That is, dropping avalanches on top of that army. First make shure that you're the one who controlls the weather. Make with the weather a ring of hard winter around your fortress and make shure that the mountaintops are covered with loads of snow. Then when the whole army is in a valley, preferably asleep, use something like soundburst (in WOI they used mortar-shells) to create avalanches. I don't think the common goodie-good guys can outrun an avalanche or survive having 4 meters of snow on top of them.
Of course this is the ideal moment to send in some (expendable) forces so the few survivers can't rescue those burried ones. Hell, you might even send in a few BEFORE the avalanche.
Also, this is an ideal moment to send your petdragon on a raid to kill off those 1600 odd wagons supplying the now reduced army. One good aimed breath on each wagon will do just fine..
Now alot of those goodie-good-doers are burried alive and those who survived only have the equipment they had picked up while running from that avalanche. Might be a good time to send in your epic forces to make shure their champions didn't survive either.