Johore battery

The Johore Battery was a set of three large naval guns installed in Changi, Singapore, by the British in the second half of the 1930s, to defend the approaches to the Naval Base at Sembawang.

History
Five 15–inch guns were installed in Singapore-three in Changi and two in Buona Vista. The three guns in Changi formed the Johore Battery. It was called the Johore Battery because the sultan of Johore gave King George V £500,000 for his Silver Jubilee in 1935. The British used £400,000 of the gift to install to guns in Changi, which in 1942 was used to shell Johor Bahru.

Built by the British in 1939 for the defence of Singapore, the Johore Battery is a gun emplacement site consisting of a labyrinth of tunnels. The tunnels were used to store ammunition to support three large guns that could fire 15-inch shells.

The guns were the largest installed outside Britain during World War II. They were destroyed before the surrender of the British army and the tunnels were sealed up after the war. The location remained a secret until the Singapore Prisons Department rediscovered them in April 1991.

Today, replicas of the large gun and 15-inch shell sit at the Johore Battery.