Obama starts his final foreign tour
US President Barack Obama arrived in Greece Tuesday morning on the first stop of his final foreign tour as president, ABC.
The US leader has made the first visit to Greece by a sitting US president since Bill Clinton in 1999.
On Wednesday, Obama is scheduled to tour the Acropolis and give a major speech about democracy and globalization before flying on to Berlin.
Greece's government has hailed Obama's visit as being of "huge importance" for both Greece and Europe.