Despite personal pleas to the White House, President Zelensky leaves Washington without a go-ahead to use Western missiles deep into Russia. As Vladimir Putin warns against strikes, The Times’ diplomatic specialist Michael Evans explains how a change in Russia’s nuclear doctrine might be influencing the decisions of Ukraine’s allies. The World in 10 is the Times' daily podcast dedicated to global security. Expert analysis of war, diplomatic relations and cyber security from The Times' foreign correspondents and military specialists.  Watch more: www.youtube.com/@ListenToTimesRadio  Read more: www.thetimes.com Hosted on Acast. See acast.com/privacy for more information.