DACHAU, GERMANY - MAY 03: In this photo provided by the German Government Press Office (BPA), German Chancellor Angela Merkel (2L) with Chairman of Zentrarats of Jews in Germany Josef Schuster, Bavarian Prime Minister Horst Seehofer and the Israeli Ambassador Yaakov Hadas-Handelsman lay down wreeaths during a ceremony to commemorate the 70th anniversary of the liberation of the Dachau concentration camp at memorial site on the grounds of the former concentration camp May 3, 2015 in Dachau, Germany. Dachau was the first Nazi concentration camp and began operation in 1933 to hold political prisoners, though it later expanded to include Jews, common criminals and foreign nationals. It served mainly as a source of slave labour during World War II and included approximately 100 sub-camps spread across southern Germany and Austria. At least 30,000 inmates died before its liberation by U.S. troops in 1945. (Photo by Guido Bergmann-Bundesregierung via Getty Images)
