In the Dawn Era, the gods battled the primordials for the rights of creation and to bring some order to the cosmos. The world Bal-Kriav became a front-line world of the Creation War. The primordial invasion of this world was met by the gods and their armies of angels. The Bulwark of Târulûth was constructed by them to keep the primordial forces from breaking out east and north of Regadnîn. The overall design of this defensive area covering hundreds of miles were conceived by a brillant planetar general named Târulûth.
The Bulwark of Târulûth is built along the southern slopes of Ušuškad - better today as the Elephant Backbone. It is a layered defensive network with thick towering walls, towers, mountain redoubts, subsurface bastions, expanded ravines and other defenses. The area also had dams built to flood Eyegaihur's passes or to inundate an area and then blasting drowning foes with electricity and freezing magic.
The Bulwark of Târulûth is a series of towers and defenses built by the gods and their angelic armies. They were made to stop the primordial hordes from breaking out of Regadnîn.
The defenders of this as yet unnamed world ( now called Bal-Kriav ) built great bastions to combat the often enormous size and great strength of the primordials and their armies.
Some of the bastions of the Bulwark are Aphalur, Irrai, and Nâzel. One place, not built but "re-tooled " is Dališar. This structure looks like a volcano, sort of acts like one, but is really an imprisoned and lobotomized primordial.