A crowd of over 200,000 turned up in Berlin to hear Barack Obama’s speech which challenged a new generation of Americans and Europeans to tear down walls between estranged allies, races, and faiths.
The Democratic White House candidate told the mass of people at the campaign rally near the footprint of the old Berlin Wall, that humanity faces a perilous turning point, and it's time to build a world that stands as one.
The speech, in Berlin's famed Tiergarten, was designed to portray Obama, who is challenging Republican John McCain for the White House in November, as a leader with unique global appeal.
"The greatest danger of all is to allow new walls to divide us from one another," said Obama.
"The walls between old allies on either side of the Atlantic cannot stand.
"The walls between the countries with the most and those with the least cannot stand… the walls between races and tribes; natives and immigrants; Christian and Muslim and Jew cannot stand. These now are the walls we must tear down."
As well as his call for cooperation across the Atlantic, Obama went through a list of various challenges, including global warming and international trade.
He told the cheering crowd the world can't remain divided if it's to beat terrorism, global warming and economic disparity.