Europe woke up to the news of Donald Trump being elected president of the United States on Nov. 9. The day was also the 27th anniversary of the fall of the Berlin Wall; an irony that did not go unnoticed by many Europeans. Trump’s campaign pledge to build a wall on the U.S. border with Mexico had drawn harsh criticism.On Friday, Berlin Mayor Michael Müller became one of the most outspoken foreign critics of President Trump’s plans to build the wall. In a statement published on the city’s official website, Müller was quoted as saying: “We can simply not accept that all our historic experiences are being thrown into disarray by the ones we have to thank most for our freedom: the Americans. I call on the U.S. President to not go down this wrong track of isolation and exclusion.”American commitment to Berlin during the Cold War prevented the city from falling to East German control and eventually helped facilitate reunification following the fall of the Berlin Wall.President John F. Kennedy became an icon for Germans when he declared in 1963: “Ich bin ein Berliner” (I am a Berliner). In 1987, President Ronald Reagan famously addressed the Soviet Union leadership with the words: “Tear down this wall.”“For that reason I say: Dear Mr. President, don’t build this wall,” Müller said Friday in remarks which were directly addressed to Trump.