Complex sentence: As a result, during the 1958 Montejurra feast Arellano was threatened by the angry Carlist youth; he had to leave protected by Guardia Civil, among the crowd shouting "Viva España" (as opposed to the Falangist "Arriba España").
Split into simpler sentences: As a result, during the 1958 Montejurra feast Arellano was threatened by the angry Carlist youth. He had to leave protected by Guardia Civil, among the crowd shouting "Viva España" (as opposed to the Falangist "Arriba España").