One senior official previously said that a Russian nuclear strike could trigger a "physical response" from NATO itself. Svitlana Morenets, a Ukrainian journalist who works for The Spectator news magazine in the UK, spoke a debate entitled "Is it time to make a peace in Ukraine." "I think Vladimir Putin is in too deep at the moment. He's committed far too much political and military capital right now to extract himself from the war without very clear successes," Jones said. "That would eventually change the balance of power in Russia's favor and allow it to reconquer territory the way it ideally wanted to in February," Jones said. One reason that countries such as Germany have been reluctant to send heavier weapons to the Ukrainians is that Berlin does not want to give Putin any pretext for escalation.