Scourge

Background
While the detachment of the Brotherhood of Steel under Owyn Lyons was heading west across the continental United States, bound for the Capital Wasteland, or the ruins of Washington, DC, to look for lost technology in the nation's former capital, they encountered many groups of survivors who had adapted in various ways to the post-apocolyptic conditions. One such region was The Pitt, formerly known as Pittsburgh.

Sweep of The Pitt
Before the Scourge, the Pitt was lawless, ruled by noone, with rape gangs, raiders, slavers,and many other kinds of horror all freely wandered, terrorizing the few innocent survivors. The Brotherhood of Steel, under Owyn Lyons swept through the area, easily devestating any large pockets of resistance, taking any unmutated children for the Brotherhood, such as Paladin Kodiak. The area was left in ruins, with few casualties on the side of the Brotherhood, Ashur, of course, being a notable exception. The stage was set for Ashur's rise to power, and subsequent control of the Pitt.