“Unbroken spirit, courage and professionalism of naval special forces, marines infantrymen demonstrated in the defence of Donbas are an example of exceptional military glory and honor. Defending Donbas and its maritime pearl – Mariupol, military sailors inscribed a lot of heroic pages to the history of the Ukrainian state,” Petro Poroshenko said in the course of his speech. He expressed firm belief that the fallen hero – commander of the naval special forces center Yurii Olefirenko deserves to be honored and his name will appear on the board of the amphibious assault ship.