LTReikšminiai žodžiai: ES; Kaimynystė; Kooperacija; Lenkija (Lenkijos karalystė. Kingdom of Poland. Poland); Lenkija (Lenkijos karalystė. Kingdom of Poland. Poland) ir Rytų Europa; Lenkijos ir Lietuvos santykiai; Lenkijos užsienio politika; Užsienio politika; Cooperation; EU; Foreign policy; Neighborhood; Polish foreign policy; Polish-Lithuanian relations.
ENLithuania plays a crucial part in the Polish eastern policy. Poland shares a complicated past with its north-eastern neighbour as well as many common interests. One can call it “a love-hate relationship”. The main purpose of this article is to investigate Polish-Lithuanian relations in four main areas: energy recourses and transmission lines; security and democratisation in the Eastern Europe; cooperation within the European Union; condition of minorities. The article focuses on ears 2007–2014 when Donald Tusk was the Prime Minister of Poland and the Ministry of Foreign Affairs was led by Radosław Sikorski. The paper also presents the role of the Polish president and parliament. [From the publication]