Photo from UNIAN

"You know, about two years ago, I came up with a similar idea: we need to limit our relations with those territories because they will be an eternal 'cancerous tumor' for us," Kravchuk said in an interview with Obozrevatel, a Ukrainian online news outlet.

But now, according to the ex-president of Ukraine, the world is changing dynamically, and fencing Donbas off by a wall would mean giving it away once and for all.

Read alsoUkraine must not restore nuclear potential - KravchukAt the moment, ideology is changing, as well as the basis for relations between states, Kravchuk noted. And in these conditions, he sees the process of Ukraine's inevitable strengthening.

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The Ukrainian officials "begin to create political formulas and search for new directions in politics, adopting another type of philosophy – strengthening our inner power. Therefore, I think Donbas will eventually re-join Ukraine, as well as Crimea," the politician said.