Ukrainian President Petro Poroshenko is convinced that there are good prospects for Ukraine in hearing the arbitration against the Russian Federation over breaches of the UN Convention on the Law of the Sea.

"International legal mechanisms to stand up against must be applied in full. We have initiated many lawsuits against Russia, in particular, over violation of the UN Convention on the Law of the Sea. The aggressor must feel the whole force of international law. I am sure that we have very good prospects [in hearing the arbitration]," he said at the opening of the 13th Annual Meeting of the Yalta European Strategy (YES) on Friday in Kyiv.