Disputes - international:
Greece and Turkey continue discussions to resolve their complex maritime, air, territorial, and boundary disputes in the Aegean Sea; Greece rejects the use of the name Macedonia or Republic of Macedonia; the mass migration of unemployed Albanians still remains a problem for developed countries, chiefly Greece and Italy

Refugees and internally displaced persons:
refugees (country of origin): 9,101 (Syria); 5,411 (Tanzania); 5,223 (Afghanistan) (2015)
stateless persons: 198 (2015)
note: 1,033,169 estimated refugee and migrant arrivals by sea (2015 - November 2016)

Illicit drugs:
a gateway to Europe for traffickers smuggling cannabis and heroin from the Middle East and Southwest Asia to the West and precursor chemicals to the East; some South American cocaine transits or is consumed in Greece; money laundering related to drug trafficking and organized crime