For those old squaddies who served in Berlin when the Iron Curtain was still up. The patch was worn on the left upper arm on our combat jackets. It is a black felt patch with a red circle and the word BERLIN at the top.
The Berlin Infantry Brigade was a British Army brigade-sized garrison based in West Berlin during the Cold War. After the end of World War II, under the conditions of the Yalta and Potsdam agreements, the Allied forces occupied West Berlin. This occupation lasted throughout the Cold War. Below you can see the time line and what this unique formation was known as.