While national debt and the immigration crisis were issues that were discussed during US President Barack Obama's visit to Greece, one topic that continued to crop up was that of international stability under Donald Trump's administration.

Speaking to the audience at the Stavros Niarchos Foundation Cultural Center in Athens on Wednesday (16 November), the outgoing US president pacified the crowd regarding their concerns over Trump.

"As you may have noticed, the next American president and I could not be more different," Obama joked to a round of laughter.

"We have very different points of view. But American democracy is bigger than any one person," he added attempting to offer a positive vision of the futureof the US. "That is why we have a tradition of the outgoing president welcoming the new one – as I did last week."

Acknowledged the transfer of power he said, "Democracy depends on a peaceful transition of power... especially when you don't get the results you want."

On Monday (15 November) he assured that Trump would uphold the US' commitment to NATO, but later warned that race, religion and ethnicity could be used to create divisions in society.

The president, who is on his last official tour visited the historic ruins of Acropolis, considered the birth place of democracy. From Greece, Obama left for Germany where he met with Chancellor Angela Merkel to discuss international trade and globalisation.

Obama Acropolis
Barack Obama tours the Acropolis with Dr Eleni Banou from the Ministry of Culture in Athens REUTERS/Kevin Lamarque