The arrival of Valery Zaluzhny in London to take up his new role as Ukrainian Ambassador to Britain as the Labour Party swept to power came at a crucial point for Kyiv-NATO relations as the United States’ support for Ukraine looks in doubt once again. The vacuum left by the departure of Vadym Prystaiko has been exasperating for Ukraine’s supporters in Britain. It took a painstaking nine months for his replacement to be announced, then a further five months for him to arrive in London. Bilateral conversations between governments have of course continued unabated. President Volodymyr Zelensky’s …