MOSCOW, 22 December 2021, (TON): President Vladimir Putin said that Russia had no room to retreat in a standoff with the United States over Ukraine and would be forced into a tough response unless the West dropped its aggressive line.

Putin addressed the remarks to military officials as Russia pressed for an urgent US and NATO response to proposals it made last week for a binding set of security guarantees from the West.

Putin said "what the US is doing in Ukraine is at our doorstep... And they should understand that we have nowhere further to retreat to. Do they think we’ll just watch idly?"

"If the aggressive line of our Western colleagues continues, we will take adequate military-technical response measures and react harshly to unfriendly steps."

Putin did not spell out the nature of these measures but his phrasing mirrored that used previously by Deputy Foreign Minister Sergei Ryabkov, who has warned that Russia may redeploy intermediate-range nuclear missiles in Europe in response to what it sees as NATO plans to do the same.

Russia rejects Ukrainian and US charges that it may be preparing an invasion of Ukraine as early as next month by tens of thousands of Russian troops poised within reach of the border.