"Ukraine has clearly defined its political future in the area of security. The Verkhovna Rada voted, and I, as President, as Supreme Commander-in-Chief, signed the law that sets the goal for our future membership in NATO as the goal of our international security," said Poroshenko.

Read alsoNATO to cooperate closely with Ukraine on defense - Stoltenberg"We consider it necessary, and today it was clearly emphasized, that we start a discussion about the introduction of the membership action plan, and our proposals for initiating the discussion were accepted gladly," the president said.

Earlier today, Poroshenko said that Ukraine was not yet going to apply immediately for membership in NATO.