Bruno Tertrais is one of the great European experts in nuclear deterrence and proliferation. In dialogue with Clarín, he spoke about the real possibilities of a Russian nuclear attack on Europe.

"No one can know what Vladimir Putin's exact intentions are, but if he won in Ukraine he would surely be tempted to go further in the coming years," he says. "I don't think there is a risk of aRussian military attack against a NATO country today," he adds. "All Western democracies are vulnerable to an unconventional attack, of a cyber type, for example"