African American Union Soldiers Guarding a Section of Union Siege Line Fortifications During the Siege of Petersburg Near Petersburg, Virginia (1864)

View of mostly African American Union soldiers guarding a section of Union siege line fortifications during the Siege of Petersburg near Petersburg, Virginia, August 7, 1864. A number of them are looking towards what are probably Confederate lines in the background. By Timothy O'Sullivan. Animated stereoscopic photographs.

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