The Russian invasion of Ukraine has changed the world. The ways it has done so are yet to be fully understood. Many of our post Cold War assumptions have been upended: Germany has abandoned its longstanding policy of maintaining a limited armed forces to commit €100 billion to defence spending; Switzerland has departed from its historical neutrality to apply sanctions to Russia; Finland is now openly discussing NATO membership and things we had assumed would never happen continue to do so on a daily basis. Set against the human tragedy that is unfolding in Ukraine, these events can seem small or insignificant in comparison. Nonetheless, they are likely to have enduring consequences for everyone in Europe. Particularly when it comes to how Europe, including the UK, powers itself.