During the financial crisis, the eurozone’s northern members rescued their southern counterparts by offering huge bailouts and backing the European Central Bank’s promise to save the euro at all costs. When Germany recently requested a quota system to cope with the massive influx of refugees, however, its partners showed no such solidarity. And now that France, reeling from the Paris attacks, has declared war on the Islamic State, other European countries are shrugging their shoulders, mumbling condolences, and silently hoping that the conflict will spare them.