The Soviets’ earliest efforts to undermine the Western occupiers (France, the UK and the US) culminated in the Berlin blockade in 1948 and 1949. Only walking paths were left open after the Russians set up barricades of rubble across these streets leading from the Soviet sector of Berlin into the western zones. The Soviets explained that the blockade would make it easier for them to keep food and fuel from being smuggled into the western sectors of the city. (Copyright AP via Der Spiegel)
I guess this makes sense, in that temporary barriers/blockades etc would be a first step, towards what eventually became the Berlin Wall and then the Iron Curtain. Yet that being said, this image of a sort of proto-Berlin Wall, almost a desire-line of sorts brought me up short. Such a simple illustration of enormous spatial and political implications.