Greek Prime Minister Alexis Tsipras speaks during the first cabinet meeting of his new  left-wing Greek administration, on September 25, 2015 in Athens. Greek Prime Minister Alexis Tsipras' new left-wing government took office on September 24, 2015 with a mandate to tackle painful economic reforms as well as a growing migration crisis that has shaken the EU. AFP PHOTO/ LOUISA GOULIAMAKI        (Photo credit should read LOUISA GOULIAMAKI/AFP via Getty Images)