The oldest district in the North American manufacturing belt is Southern New England, especially the place of Boston. The North Ameican manufacturing belt is called the Rust Belt. It is a region of U.S to the northern part of Midwest States from the Great Lakes.
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We have GPS guided missiles big enough to knock out entire city blocks and can see you with infrared or night-vision cameras 30,000 feet in the air and rain down 30mm cannon rounds at 3,000 rpm or fire a volley of incendiary missiles and burn you out of the trench and then blast you to hell and back a few dozen times.