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A girl with an "Estelada" (pro-independence Catalan flag) painted on her face smiles during celebrations of Catalonia's National Day (Diada) which recalls the final defeat of local troops by Spanish king Philip V's forces in 1714, in Barcelona on September 11, 2015. Hundreds of thousands of Catalans were set to pour into the streets today demanding independence, ahead of a regional election billed as an indirect vote on breaking away from Spain. AFP PHOTO/ JORGE GUERRERO (Photo by Jorge Guerrero / AFP) (Photo by JORGE GUERRERO/AFP via Getty Images)

A girl with an "Estelada" (pro-independence Catalan flag) painted on her face smiles during celebrations of Catalonia's National Day (Diada) which recalls the final defeat of local troops by Spanish king Philip V's forces in 1714, in Barcelona on September 11, 2015. Hundreds of thousands of Catalans were set to pour into the streets today demanding independence, ahead of a regional election billed as an indirect vote on breaking away from Spain.    AFP PHOTO/ JORGE GUERRERO (Photo by Jorge Guerrero / AFP) (Photo by JORGE GUERRERO/AFP via Getty Images)