1963-01-04 US convoy arrives. New US city commandant in Berlin, Major-General James H Polk (left) and Brigadier General Frederick O Hartel (centre), US troop commander in Berlin, Greek Col Robert L Dickerson, commander of the 1st Battle Group of 13th US Infantry,, after the first part of the unit arrived at checkpoint 'Bravo' at the border between East Germany and West Berlin. They were part of a week-long movement along the the 110 mile highway to and from the city to exchange a Berlin based battle group for one based in West Germany. 4 January 1963 Foto / Topfoto / TT / kod 20306 ref: *** BETALBILD ***