(AGI) Moscow, Sept 12 - Ukraine will retake Crimea, but notnecessarily by military means, said President Petro Poroshenko.The loss of the peninsula, which was annexed by Russia in Marchafter a referendum, was a significant problem, he said. RussianForeign Minister Sergei Lavrov in July warned against attackson Crimea. Russia regards Crimea as having been rightfullyreturned to Russia after being given to Ukraine by Sovietleader Nikita Krushchev in 1954. (AGI) . .