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. The French Army also had units in Berlin, called Forces Françaises à Berlin and the US Army's unit in Berlin was the Berlin Brigade.
The Berlin Infantry Brigade was formed in October 1953 out of the force called "Area Troops Berlin" and consisted of some 3,100 men in three infantry battalions, an armoured squadron, and a number of support units. Its shoulder sleeve insignia was a red circle over a black background with the word Berlin in red on a black background running around the top. It was not initially part of the British Army of the Rhine despite being based in Germany. However, it is recorded, at the very least, by the mid-1980s, that the brigade was indeed part of BAOR, being its second major component after I (BR) Corps.
The military post code for Berlin was originally BAOR 2, later BFPO 45.
The three infantry battalions and armoured squadron assigned to Berlin were rotated regularly; the single armoured squadron was detached from an armoured regiment assigned to I (BR) Corps. The infantry battalions were rotated every two years. All other units were permanently based in Berlin.
When the Berlin Wall fell, the operational structure of the British forces in Berlin was as follows: