Fort Abraham Lincoln is a historic military post located in North Dakota, established in 1872. It served as a base for the United States Army during the Indian Wars and was named after President Abraham Lincoln. The fort played a significant role in the protection of settlers and the expansion of the western frontier. Today, Fort Abraham Lincoln is a state park that features reconstructed buildings, including the Custer House, which was home to General George Armstrong Custer. Visitors can explore the fort's history through guided tours, exhibits, and reenactments, providing insight into life during the late 19th century.