ປະທານາທິບໍດີ ໂອບາມາ ກ່າວຄໍາປາໄສ ຢູ່ເບີລິນ

Flanked by Chancellor Angela Merkel and Berlin Mayor Klaus Wowereit, U.S. President Barack Obama  waves at the Brandenburg Gate in Berlin June 19, 2013.

A woman holds up a sign as she watches U.S. President Barack Obama at the Brandenburg Gate in Berlin, June 19, 2013.

Invited guests wait for U.S. President Barack Obama's speech front of Brandenburg Gate in Berlin, Germany, June 19, 2013.

Invited guests are entertained by violinist David Garrett as they await the arrival of U.S. President Barack Obama in front of the Brandenburg Gate in Berlin June 19, 2013.

Protesters display a cut out figure of U.S. President Barack Obama in front of a replicate piece of the former Berlin Wall reading "Mr Obama tear down Wall Street" in Berlin, June 19, 2013.