British defenders at Fort William Henry (at the southern end of Lake George) were surrounded by an overwhelming French force and their Indian allies from many tribes in August 1757. The British surrendered to the French after being offered terms that included protection from the Indians. Nonetheless, the Indian warriors' customs permitted the enslavement of some captured enemy soldiers and the scalping of others, and they ignored French efforts to prevent the massacre. They killed or captured hundreds of the surrendered force, including women and children. Some of those scalped had smallpox, and the scalps were brought to numerous Indian villages as trophies, where they caused an epidemic that killed thousands of Indians.