Quote Originally Posted by ebarde View Post
Even without all the epic level casters in the city(which keep in mind, could always just teleport back fairly easy for all the other nations knows), defeating the goblinoid army is just way too difficult for honestly no apparent gain. They probably would need to march through a few of the goblinoids' allies too, not to mention the sheer material you'd need to send in to fortify and defend an entire city.
Indeed, it would be very difficult, and the potential gains would be slim.

Unless, of course, they believed the Goblins might decide to deal with obstinate nations militarily, at which point "get your self defense on first" becomes a compelling casus belli. And... what allies? Have any been mentioned? Because the closest they've got are a bunch of nations recognizing their borders. That doesn't make them allies, or even friendly, just "...yes, fine, you exist and we'll maybe trade with you". And there's always, well, the chance of mid-to-high level adventurers coming in and deciding to liberate the conquered kingdom of Azure City, ruled by the vile, murderous, wretched goblins that destroyed one of the great bastions of civilization in the South!

Seriously, tell me that doesn't sound like a pretty strong D&D campaign?