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https://explore.chicagocollections.org/records/?f1-cities=Chicago&f2-topics=Government+%26+Leadership%3A%3AMilitary&f3-topics=Government+%26+Leadership%3A%3AMilitary&f4-types=Digital+Images&f5-topics=Government+%26+Leadership%3A%3AMilitary&f6-neighborhoods=Armour+Square