MOSCOW: President Vladimir Putin said on Tuesday that Russia would be forced to act if its “red lines” on Ukraine were crossed by NATO, saying Moscow would view the deployment of certain offensive missile capabilities on Ukrainian soil as a trigger.

Speaking at an investment forum in Moscow, Putin said he hoped common sense would prevail on all sides, but that he wanted NATO to be aware of Russia’s own security concerns around Ukraine and how it would respond if the West continued to help Kyiv expand its military infrastructure.

“If some kind of strike systems appear on the territory of Ukraine, the flight time to Moscow will be 7-10 minutes, and five minutes in the case of a hypersonic weapon being deployed. Just imagine,” said Putin.

“What are we to do in such a scenario? We will have to then create something similar in relation to those who threaten us in that way. And we can do that now.”

Putin said Russia had just successfully tested a new sea-based hypersonic missile which would be in service at the start of the new year. He said it had a flight time of five minutes at nine times the speed of sound.

The Russian leader, who questioned why NATO had ignored repeated Russian warnings and expanded its military infrastructure eastwards, singled out the deployment in Poland and Romania of the Aegis Ashore missile defence system.

He made it clear he did not want to see the same launch MK41 systems, which Russia has long complained can be used to also launch offensive Tomahawk cruise missiles, in Ukraine.

“Creating such threats (in Ukraine) would be red lines for us. But I hope it doesn’t come to that. I hope that a sense of common sense, responsibility for both our countries and the world community will prevail,” said Putin.