Any further aggression against Ukraine will have massive consequences and severe costs for Russia, said High Representative of the European Union for Foreign Affairs and Security Policy Josep Borrell, Report informs.
According to Borrell, dialogue is a must, but so is deterrence and resolve through firm support of Ukraine's sovereignty and territorial integrity:
"We are coordinating our approach closely with transatlantic and other like-minded partners. There is no security in Europe without the security of Ukraine."
Borrell visited Ukraine from January 4 to 6 and the line of contact in the Donbass region.