On 17 June, Europe saw a return to trench warfare. It was not Verdun, of course, nor even the Somme, but the European Parliament had rarely witnessed such a brutal confrontation since its creation in 1958. Around 1 pm, a shiver ran through the Strasbourg chamber: in a matter of seconds, 418 MEPs approved the "return regulation", a measure allowing member states to open "return centres" outside our continent to send migrants eligible for expulsion from their territory.