BARCELONA, SPAIN - OCTOBER 29: Protesters sing the Spanish national anthem during a pro-unity demonstration on October 29, 2017 in Barcelona, Spain. Thousands of pro-unity protesters have gathered in Barcelona, two days after the Catalan Parliament voted to secede from Spain. The Spanish government stripped Catalonia of its autonomy following the Catalan parliament's vote to declare independence. (Photo by Borja Sanchez-Trillo/Getty Images)
