MUNICH, February 18. /TASS/. There are no risk-free options in terms of the conflict in Ukraine but the biggest risk of all is if Russia wins, NATO Secretary General Jens Stoltenberg said, addressing the Munich Security Conference on Saturday.

"Some worry that our support to Ukraine risks triggering escalation. Let me be clear: there are no risk-free options, but the biggest risk of all is if Putin wins," he noted, adding: "This will make the world more dangerous and us more vulnerable."

The NATO secretary general highlighted the need to learn "some important lessons" from the Ukraine conflict. "First, we must sustain and step up our support to Ukraine" and "give Ukraine what they need to win," Stoltenberg pointed out. "The second lesson is that we need to continue to strengthen our deterrence and defense," he went on to say. "The third lesson is that we need to strengthen the resilience of our societies. Military forces are necessary to protect our security but they are not sufficient. We must also secure our cyberspace, our supply chains and our infrastructure," the NATO chief stressed.

According to him, the most important lesson is that "North America and Euyrope must stand together.".