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Civil War: Earthworks Fortification

The landscape of Fairfax County is dotted with Civil War sites associated with the Union Army's four-year occupation of northern Virginia. Today, many of the forts built by Union engineers during the war still exist. These field fortifications (such as a trench or a mound) made of earth were used to protect troops during battles or sieges, to protect artillery batteries, and to slow an advancing enemy.

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