UNIAN: Poltorak says Ukraine boosts defensive capabilities at sea By UNIAN. Published Jan. 28, 2019 at 1:51 pm Ukrainian Navy ship Balta patrols the Black Sea near the Odesa Sea Port on Dec. 13, 2018. Photo by Veronika Melkozerova Ukrainian Defense Minister Stepan Poltorak says Ukraine is staking measures to boost its defensive capabilities at sea. Read more here.