2015 - Vicksburg Natchez - 1000Places
To prevent Thayer's men from exposure to Confederate fire, a short tunnel was excavated through the ridgeline protecting the Union forces. Once the Federals broke through the ridge, under cover of darkness, they were able to begin digging the approach trench toward the Southern position.

To prevent Thayer's men from exposure to Confederate fire, a short tunnel was excavated through the ridgeline protecting the Union forces. Once the Federals broke through the ridge, under cover of darkness, they were able to begin digging the approach trench toward the Southern position.

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