Fort George was constructed between 1796 and 1799 on the west bank of the Niagara River. Britain had agreed under the Jay Treaty to evacuate Fort Niagara, which stood on the American side after the boundary settlement. The new post protected the town then called Newark, supported the Provincial Marine, and served as headquarters for British forces in the central section of Upper Canada. Earthworks, palisades, blockhouses, barracks, stores, kitchens, workshops, and a stone powder magazine formed a military community above the wharves of Navy Hall.

When war began in 1812, Major-General Isaac Brock used Fort George as a headquarters while coordinating defense along the Niagara frontier. British regulars served with Canadian militia and Indigenous allies. Artillery exchanged fire with Fort Niagara across the river, damaging buildings and exposing weaknesses in Fort George’s design. After Brock was killed at Queenston Heights in October, his body was temporarily buried in one of the fort’s bastions. The post remained vital for supplies and command even as bombardment made daily life increasingly dangerous.

On 27 May 1813, American naval guns and shore batteries opened the Battle of Fort George. Troops landed west of the fort and forced the outnumbered defenders to retreat. Before withdrawing, British forces destroyed stores and works that could not be carried away. American troops occupied the position for about seven months, modifying its defenses, but abandoned it in December during a wider withdrawal from the Canadian side. The British returned to a heavily damaged post and soon captured Fort Niagara, reducing the need to restore Fort George fully.

Fort Mississauga gradually replaced Fort George as the main defensive work at Niagara, although the old grounds retained military uses. The site was designated a national historic site in 1921. During the Great Depression, a major reconstruction project used Royal Engineers’ plans and archaeological evidence to recreate the fort’s late eighteenth-century appearance. Work between 1937 and 1939 rebuilt blockhouses, palisades, and earthworks and provided employment. The original stone powder magazine survived, making it the principal standing structure from the first fort.

Opened to visitors in 1940, Fort George became a leading Canadian example of a reconstructed military site and living-history museum. Costumed interpretation, musket and artillery demonstrations, restored rooms, artifacts, and archaeology explain garrison life and the War of 1812. Modern interpretation also gives greater attention to Indigenous allies, Black soldiers, civilians, and the cross-border character of the Niagara region. The site preserves both an important battlefield landscape and the history of twentieth-century commemoration, when Canadians rebuilt a vanished fort to make an emerging national story visible.