Andrius Kubilius, European Commissioner for Defense Industry and Space, has warned that it would be a “ serious mistake ” if the European Union fails to bring Ukraine fully into its emerging defense framework. Speaking to the Kyiv Independent in an interview published on September 16, Kubilius emphasized that Ukraine ’s battlefield experience is indispensable for the continent’s security. He cautioned that Europe must prepare for the possibility of “ Day X ,” when Russia could escalate