This feels like the complacency that has meant Europe is almost entirely dependent on the US for credibile defence against Russia. Europe is not well-armed, as shown by the panicked response to Trump's threat to let NATO allies be attacked if they don't contribute enough to the budget, and it will take a long time to re-arm properly in the current economic climate. (For clarity, I think Trump's threat is terrible in many ways, but it has exposed NATO's fundamental dependence on the US)