Ukrainian President Petro Poroshenko tweeted in his social webpage, in which he particularly stated:
"The ongoing armed conflict in Ukraine will end only after the return of Crimea and Donbas regions under control of the Kiev authorities," the tweet reads.
In addition in an interview with Ukraine's STB television channel, the Ukrainian president added that combat operations in the conflict zone would be carried out "for as long as it is necessary," Sputnik News reports.