(FILES) In this file photo taken on September 11, 2018 people wave pro-independence Catalan flags 'Esteladas' while holding letters reading "independence" during a pro-independence demonstration in Barcelona to mark the National Day of Catalonia, the "Diada". - Catalonia's separatists plan a big rally on Wednesday that will test the strength of the divided independence movement just weeks before a Spanish court issues its verdicts against their leaders over the region's failed independence bid. (Photo by LLUIS GENE / AFP) (Photo by LLUIS GENE/AFP via Getty Images)
