&gt; world war two has left a deep scar on Europe which has made it overly cautious and allergic to necessarily addressing unjust violence.<p>I&#x27;d say it&#x27;s probably far more likely due to more recent episodes of liberal interventionism; which has sometimes resulted in relative success (depending on your point of view) e.g Sierra Leone, Bosnia&#x2F;Herzegovina and Kosovo&#x2F;Yugoslavia in the early nineties.<p>More often than not, intervention has resulted in a negative, or otherwise generally messy outcome with unforeseen consequences, e.g Iraq, Afghanistan, &lt;str&gt;Syria&lt;&#x2F;str&gt; Libya.. The poor execution of military intervention by western powers of the latter is arguably at least in part to blame for the current refugee crisis.