
The article analyses the Agreement between the Republic of Poland and the Kingdom of Denmark concerning the Delimitation of Maritime Zones in the Baltic Sea of 19 November 2018. The maritime dispute in the Baltic Sea was one of the most challenging issues in relations between Denmark and Poland. The States were divided on how to apportion the maritime zone of 3.500 km2, where the economic zones of Denmark and Poland had not been delimited for several dozen years. The agreed single maritime boundary split Poland and Denmark’s continental shelves and exclusive economic zones in part of the Baltic Sea south of Bornholm. The maritime dispute settlement coincided with the PolishDanish plans to build the Baltic Pipe natural gas pipeline at the bottom of the Baltic Sea. It prompted the two States to put an end to their maritime border dispute. The International Law of the Sea provides
that the delimitation of maritime zones between States with opposite or adjacent coasts shall be effected by agreement based on international law to achieve an equitable solution. The purpose of the present article is to analyse the Polish-Danish Agreement in light of the principles governing the maritime delimitation and the statement made by the Polish government on its successful negotiations.