Additional gun batteries were built during the 1940s and 1950s.
The battery, of three 24-pounder and two 9-pounder guns, was added in 1804.
There was a gun battery located near the town at the time.
It had been damaged during the war when the site was used for a gun battery.
In addition, all ground personnel have been ordered to report to their gun batteries.
They attempted to take control of the gun battery on the islands.
The battery of six guns was commanded by a captain.
The walls and gun batteries have been built up since then.
It is also the only gun battery in the battalion to field professional soldiers.
This original battery of four heavy guns remains in place at the fort.