dispute remains with Bosnia and Herzegovina over several small sections of the boundary related to maritime access that hinders ratification of the 1999 border agreement; since the breakup of Yugoslavia in the early 1990s, Croatia and Slovenia have each claimed sovereignty over Piranski Bay and four villages, and Slovenia has objected to Croatia's claim of an exclusive economic zone in the Adriatic Sea; in 2009, however Croatia and Slovenia signed a binding international arbitration agreement to define their disputed land and maritime borders, which led to Slovenia lifting its objections to Croatia joining the EU; Slovenia continues to impose a hard border Schengen regime with Croatia, which joined the EU in 2013 but has not yet fulfilled Schengen requirements
bilateral government, legal, technical and economic working group negotiations continue in 2006 with Slovakia over Hungary's failure to complete its portion of the Gabcikovo-Nagymaros hydroelectric dam project along the Danube; as a member state that forms part of the EU's external border, Hungary has implemented the strict Schengen border rules
Illicit drugs
primarily a transit country along the Balkan route for maritime shipments of South American cocaine bound for Western Europe and other illicit drugs and chemical precursors to and from Western Europe; no significant domestic production of illicit drugs
transshipment point for Southwest Asian heroin and cannabis and for South American cocaine destined for Western Europe; limited producer of precursor chemicals, particularly for amphetamine and methamphetamine; efforts to counter money laundering, related to organized crime and drug trafficking are improving but remain vulnerable; significant consumer of ecstasy
Refugees and internally displaced persons
stateless persons: 2,900 (2020)
note: 727,610 estimated refugee and migrant arrivals (January 2015-May 2021); flows slowed considerably in 2017; Croatia is predominantly a transit country and hosts about 340 asylum seekers as of the end of June 2018
refugees (country of origin): 5,950 applicants for forms of legal stay other than asylum (Ukraine) (2015)
stateless persons: 145 (2020)
note: 432,744 estimated refugee and migrant arrivals (January 2015-December 2018); Hungary is predominantly a transit country and hosts 137 migrants and asylum seekers as of the end of June 2018; 1,626 migrant arrivals in 2017
