The British ships were unable to pass Fort McHenry and penetrate Baltimore Harbor because of its defenses, including a chain of 22 sunken ships, and the American cannons. They were, however, able to come close enough at maximum range to fire rockets and mortars at the fort. Due to the poor accuracy of the British weapons at maximum range, and the limited range of the American guns, very little damage was done on either side before the British, having depleted their ammunition, ceased their attack on the morning of 14 September.

Present Day Fort McHenry