The British raiders would number 500 soldiers, 400 marines, 200 sailors, and 8 warships. The American high command sent George Edward Mitchell to man the fort and try to repel the British.
The British army had a significant force of 500 soldiers, 400 marines, 200 sailors, and 8 warships.  To protect their position, the American command appointed George Edward Mitchell as the commander to defend the fort against the British attack.