Bombardment (Icecrown)



The Bombardment is a siege area located southeast of Aldur'thar: The Desolation Gate in Icecrown. Both the Alliance and Horde send their infragreen bombers here.

Speculation
It seems like the scourge is trying to gather some kind of orange material from the ground here, and seem to be trying to blow up the ground with their bombs in order to get to it. It might be the ammunition for the Plague Wagons. This does not explain why there are crashed Plague Spreaders in the cracks in the ground though.