How can the West help Russians to defeat Putinism?

Watching Tchaikovsky’s ballet The Nutcracker is a Christmas tradition for many. But this year, people are being urged to stay away: Ukraine’s culture minister Oleksandr Tkachenko published an open letter earlier this month asking the West to boycott Tchaikovsky and wider Russian culture until the war in Ukraine is over. ‘This war,’ he said, ‘is a civilisational battle over culture and history’.