Russia will give an "adequate response" to every attack that Ukraine carries out against Russia with the use of Western long-range weapons, Kremlin's official spokesman Dmitry Peskov said.
President Vladimir Putin indicated that permission to use long-range missiles that Ukraine received from the West was "an irresponsible step to escalate tensions."
"If these missiles are used, an appropriate response will be given each time. <...> This practice will continue," Dmitry Peskov said.
Last week, the Kremlin spokesman said that by authorising strikes deep into Russian territory, the United States ignored Putin's warning. This triggered a decisive response from Moscow.
During his speech in St. Petersburg a couple of months ago, the Russian leader sent a "clear, unambiguous, reasoned" signal to Western countries. There was hope that they would heed this warning, but a combination of rabidity and a thirst for domestic political revenge on the part of decision-makers in Washington led to Moscow's warning being ignored, Peskov said.