In 1948 USA, Britain and France merged their zones into West Germany and West Berlin. USA poured large sums of money into West Berlin.
Stalin was convinced this was a Capitalist plot to lure East Germany and East Berliners.
He was angry that he wasn't consulted about decisions - such as the new Deutschmark.
Stalin may have thought the USA and its allies were planning to reunite Germany.
On the 24th June 1948 Stalin ordered all road, rail and canal routes between West Germany and West Belin to be closed.
He hoped to…