As the Democratic Party's probable nominee, Senator Barak Obama is preparing to make a speech in Berlin. DW looks back at the string of US presidents' visits to the German capital as well as the rest of the country.
https://p.dw.com/p/EiSm
American presidents usually pay a number of visits to Germany during their time in officeImage: AP
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Click on the picture gallery below to see the highlights of US presidents' trips to Germany.
