Sanctions don’t work – serious diplomacy is the only way to stop Putin | Simon Jenkins

When the fighting stops, Britain must help Russia and Ukraine live as neighbours again

We now know that Ukrainians mean to fight the Russian invasion with determination and bravery. In that fight they must have support. We cannot fail to admire fellow Europeans as they take up weapons to defend their country against meaningless aggression.

But what does support mean? The British government disagrees with many Ukrainians that it shares the same threat and should join the same fight. With Vladimir P...