A Block House (U.S. Civil War) White Coffee Mug

The term "A Block House" refers to a type of fortification used during the U.S. Civil War, specifically built for defensive purposes. These structures were typically small, rectangular buildings made of stone or earthwork, with walls thick enough to resist cannonballs. They played crucial roles in many battles by providing cover and delaying enemy advancements. Notable examples include Fort Sumter and Fort Pickens. The design and placement of these blockhouses significantly influenced the course of various engagements during the Civil War, particularly sieges and skirmishes in coastal regions.