1 pp 1863
One of the geographic strategies for both armies was the capture of the other's capital. Washington, DC, was situated precariously on the Potomac River, sandwiched between Maryland, a slave state which did not secede, and Virginia, one of the last slave states to secede. As a primary defense, Union troops constructed an extensive ring of earthen forts around the city. Richmond, which became the Confederate capital in mid-1861, was situated less than 100 miles south of Washington, DC. Confederate troops also fortified Richmond with a ring of forts, as depicted on this map published in Boston. As a reminder to a northern audience that Richmond was the target, the publisher placed a series of concentric rings around the city.
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