bob678
Unfortunately, the major European players have generally proven to be utterly lacking in geopolitical foresight and incapable of acknowledging (much less taking credible action against) imminent or active threats until they smash down the front door, and as they did with Russia, China is no exception.
If Europe is to become the independent power bloc it loudly proclaims it will, it needs to understand that they need to expand their horizons beyond their immediate periphery. It cannot simply continue to pretend that the the affairs of the world outside of the EU borders are immaterial like they did in 2014.
When people imagine mass casualty events, they imagine something like Verdun or Hiroshima, where tens of thousands are killed within a relatively concentrated geographic radius. But more often than not, they actually occur across a wider area in numerous but smaller casualty increments which add up to something much bigger. And when considering how deadly even a single well-positioned gunman with an automatic rifle can be against a crowd of unarmed and tightly packed civilians, it's really not surprising to see how easily casualties could have mounted, especially when you multiple that over 400+ cities.