"We discussed in detail the situation in the occupied Crimea and emphasized the unacceptability of the fact that Crimea has been militarized and actually turned into a military base as a result of the temporary occupation. I and Mr. President [Erdogan] called for the joint efforts which will be focused on de-occupation of Crimea. To this end, we plan to unite efforts within the framework of international organizations as well as on the basis of new international formats, including the "Geneva plus" format involving the Budapest Memorandum guarantors, Turkey and Ukraine," President Poroshenko said.