The appalling terrorist assaults perpetrated by ISIS in Europe have led to significant changes in the European state of mind. By exposing the vulnerability of EU state borders, they have prompted rudimentary initiatives to secure those borders and increase counter-terror cooperation among EU member states, while also boosting the popularity of far-right parties. The attacks have given rise to a discreet cooperation between EU member states and Israel in dealing with the terrorist threat, but have not prompted the EU to change its critical position regarding Israel’s defensive measures against Palestinian terror. The moral double standard of the EU on this issue might undermine its own fight against Islamist terrorism.