The Polish foreign minister has said that finding a solution to the Ukrainian-Russian conflict is one of the most important challenges in the field of European security. "Poland will fully support all diplomatic steps aimed at a peaceful resolution of the situation inside and outside of Ukraine in accordance with the Minsk Agreements and in full respect of Ukraine's sovereignty and territorial integrity within its internationally-recognised borders," Minister Zbigniew Rau told a meeting of the Permanent Council of the Organisation for Security and Cooperation in Europe (OSCE) in Vienna on Thursday.