Chicago

Chicago was a city located in Illinois. It was nearly completely destroyed in the Great War and the few that survived the bombs now live mostly in small tribal villages near the former city.

Some time after the defeat of the Master in 2162, the Brotherhood of Steel constructed airships and dispatched some of its soldiers East, to track down and assess the extent of the remaining super mutant threat. However, a great storm (probably in crossing the Divide) broke the main airship and flung it far from its course.

The mighty airship was badly damaged. The smaller sections were torn from the main craft and were never to be seen again. Many of the expedition leaders, including paladin Latham, were lost to the winds. The fraction of the crew that still survived, struggled to keep their ship aloft before finally crashing on the outskirts of the ruins of Chicago. The survivors eventually formed an organization called the Midwestern Brotherhood of Steel, which diverged greatly from the ideals of the original Brotherhood of Steel. In time, they established a harsh rule over the towns and villages near Chicago, controlled from the Bunker Alpha. A strange dark sky is over the city of Chicago and the city is now probably abandoned, only remain an hinting Enclave outpost here.

Appearances
The remains of Chicago appear only in the Fallout Tactics intro but not in-game. The city is also briefly mentioned in Fallout 3 by Scribe Jameson and Scribe Rothchild about fighting super mutants and in Fallout: New Vegas on a recording found on ED-E during the quest "ED-E My Love", hinting at an Enclave outpost located there.