madrid european commission president jean-claude juncker thursday call europe stand separatism time catalan independence push deeply divide spain standoff madrid supporters catalan independence trigger ban oct. referendum split spain stir separatist feel far beyond spanish border nationalisms poison prevent europe work together say juncker speech university spanish city salamanca receive award stay arm cross time us need do say form separatism weaken europe widen exist fissure juncker comment disappoint depose catalan president carles puigdemont go self-imposed exile belgium last week spain central government respond independence declaration fire administration puigdemont ambition garner support independence campaign heart european union appeal eu intervention far forthcoming secessionist drive drag spain bad political crisis since return democracy four decades ago catalan parliament speaker five lawmakers appear thursday spain supreme court madrid answer charge rebellion sedition roles stag referendum european union also currently face huge challenge unity britain impend exit bloc spanish dispute also bear similarities battle scottish separation culminate 2014 referendum narrowly reject independence spanish prime minister mariano rajoy juncker salamanca thank support difficult time juncker support spanish government action express respect constitution laws legal system tell students professors event juncker call europe reject separatist 'poison amid catalonia crisis