Europe suddenly began talking about war with Russia last week in terms that would have been unthinkable a few months ago. What has changed in Europe is not simply the assessment of Russia but the belief that the next confrontation may not begin with tanks crossing a border. It could start with a drone, a cyberattack, sabotage or a deliberately ambiguous strike designed to leave NATO governments arguing over what happened and how to respond.
A week that rattled European capitals
