Fort Christina-- Part 4: Forts Casimir and Union

The fort's earthworks were strengthened in 1640 for fear of an attack from either the Dutch or Indians.  The Dutch, in the meantime built Fort Casimir, in what is today New Castle, Delaware.

In 1655, Fort Christina was captured by the Dutch after a ten-day siege.

During the American Revolution, Continental forces built a fort at Fort Christina and later, during the War of 1812, Americans constructed Fort Union there.

--Brock-Perry