Chicago

A city in Illinois. American physicists had been in the early stages of the project to build an atomic bomb at the University of Chicago when the Race invaded. In an attempt to disrupt Tosevite radio transmissions, Atvar ordered the detonation of several atomic bombs high in the Earth's atmosphere. One of these was detonated over Chicago.

The Race overran Chicago in the first year of their invasion of the United States, prompting the team working on the atomic bomb to flee. However, in the winter of 1942 American forces began retook the city. Chicago eventually became the primary front of the Race's invasion of the United States when the Race once again tried to overrun it. They gradually pushed the Americans back, but their progress was so slow and costly that, when Atvar promised Cordell Hull that his infantrymales would reach Lake Michigan, Hull retorted "Some will, but how many won't?"

When the US's first atomic bomb was ready, American soldiers buried the bomb under their position and withdrew from the city. When the Race took possession of the field, the US detonated the bomb by a radio transmitter, destroying much of the city.