4.54pm BST

We're going to wrap up our live blog coverage of President Obama's Berlin outing. Here's a summary of where things stand:

• Obama called for the reduction of global nuclear arsenals by as much as a third and for Russia and the United States to move past Cold War posturing. He announced a summit on non-proliferation to be hosted by the United States in 2016.

• The American president was greeted warmly by thousands of invited audience members. He drew excited applause for speech lines about the importance of an equal and open society and for the need to close the prison at Guantanamo Bay. Still some attendees came away underwhelmed.

• Obama paid tribute to Berlin as a symbol of constructive peace after a destructive past. "Because millions across this continent now breathe the fresh air of freedom," he said, "we can say here in Berlin: Our values won - openness won, tolerance won, freedom won... here in Berlin."

• Obama hinted at calls for greater German support for US intervention in countries such as Syria. "We cannot dictate the pace of change in Arab world but we must reject the excuse that we can do nothing to support it," he said.