Greek Prime Minister Alexis Tsipras is speaks during the 5th congress of the Party of the European Left in Berlin, Germany on December 17, 2016. The congress is finding place from December 16 to 18, 2016. (Photo by Emmanuele Contini/NurPhoto via Getty Images)
BERLIN, GERMANY - FEBRUARY 05: New Greek Finance Minister Yanis Varoufakis attends a press conference with German Finance Minister Wolfgang Schaeuble following talks on February 5, 2015 in Berlin, Germany. Varoufakis is touring several European cities and yesterday met with Mario Draghi at the European Central Bank following announcements by the new Greek government to sharply alter its relationship with the troika of loan-giving entities. (Photo by Carsten Koall/Getty Images)
PARIS, FRANCE - NOVEMBER 23: French President Francois Hollande and British Prime Minister David Cameron arrive to attend a meeting at the Elysee Presidential Palace on November 23, 2015 in Paris, France. The meeting comes over a week after the Paris terrorist attacks that claimed at least 129 lives in the French capital. (Photo by Thierry Chesnot/Getty Images)
