Former President Kravchuk is sure Crimea will become part of Ukraine sooner or later / Photo by Michał Józefaciuk

"It's a contact line between Ukraine and militants from DPR and LPR [two self-proclaimed republics of Donetsk and Luhansk respectively] rather than the border between Russia and Ukraine. We take this line as the status quo, as a temporary dividing line and cease using fluent phrases like 'humanism,' 'it's our people who live there,' 'they need help,' 'we must collect taxes here and help them in a plight there.' We must temporarily cut out that territory until it has been liberated," he said.

He stresses it's time to let Kremlin-backed militants "rule in 'their' territories."

"Let's see which money will be in circulation there. We must stop economic, political and other relations with them," he said.

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"If people who are in territory that is not controlled by Ukraine want to live a new life, let them [the occupying authorities] be taken off the pedestal as the administration was taken off at Kyiv's Maidan," Kravchuk said.

At the same time, Kravchuk stresses that Ukraine must "carry out reforms, elections and build a new life, fight corruption" in the areas it controls.

When asked whether Ukraine restores its borders that existed as of February 20, 2014, Kravchuk answered positively.

"Sometimes it takes a century when everything gets back to its normal course. Both the West and the United States will eventually understand that Russia is a dangerous state in the world today. And sanctions need to be imposed against it not because it does not abide by the Minsk agreements. The Minsk accords are a special case while Russia's political philosophy rests on aggression. And the sanctions should be in effect until they [in Russia] realize that they must either become part of the civilized world or exist on the margins. Not that powerful they are as they pretend to be," Kravchuk added.