Читать книгу American Civil War For Dummies - Keith D. Dickson - Страница 113

Engineers planned and built fortifications (both temporary and permanent), built roads and bridges (both temporary and permanent), and made terrain maps (probably temporary and permanent, too). As the war went on, the skills of engineers became of increasing importance when both armies began to use entrenchments and breastworks, using sandbags and logs covered with earth to protect their forces while having a clear shot at the attacking enemy. Both Richmond and Washington were protected by extensive fortifications.