MOSCOW, April 26. /TASS/. London’s policy of instigating the regime in Kiev to use Western weapons against Russia, should such attempts occur, will entail proportionate retaliation, the Russian Defense Ministry said on Tuesday following British Deputy Defense Minister James Heappey’s statement to the effect the British government believes it would be permissible for Ukraine to attack "legitimate" military targets on Russian territory.

"We would like to stress that London’s direct instigation of the regime in Kiev to commit such actions, should these attempts materialize, will instantly entail our proportionate response. As we have warned, the Russian armed forces are ready round the clock to carry out retaliatory strikes with long-range smart weapons against decision-making centers in Kiev," the Defense Ministry said.

Also, the Defense Ministry warned that "the subjects of one of the Western countries, present at the Ukrainian decision-making centers in Kiev in the capacity of advisers, will not necessarily constitute a problem for Russia in making a decision to retaliate."

Earlier, Heappey said in a BBC interview that it would be "completely legitimate" for Ukraine to attack targets inside Russa with Western weapons.

"It is completely legitimate for Ukraine to be targeting in Russia's depth in order to disrupt the logistics," he said.