NATO Secretary-General Jens Stoltenberg said on Thursday it would be dangerous to underestimate Russia and President Vladimir Putin's ambitions amid the war in Ukraine.
"They have shown a great willingness to tolerate losses and suffering," Stoltenberg told a business conference in Norway.
"We have no indication that President Putin has changed his plans and goals in Ukraine. So it's dangerous to underestimate Russia."
(Reporting by Terje Solsvik, editing by Gwladys Fouche)