Catalonia Declares Independence; Spain Approves Central Takeover Of Region (npr.org)
Readers share a report: Lawmakers in Catalonia have declared independence from Spain in a historic vote that prompted protests and celebration. The government in Madrid, vowing to halt any would-be secession, has authorized the Spanish prime minister to take over direct rule of the previously semi-autonomous region. The vote in the Catalan Parliament comes nearly a month after the region held a referendum on independence, over Spain's objections. The regional president then declared his support for separation from Spain but also called for talks with Madrid, in an ambiguous speech. Spain's central government, promising to crack down harshly if the declaration was real, told the region's leaders to make up their mind: Yes or no? Independence or not? Now it's final: Independence, Catalonia said.
Every time a governed people declare independence it has been "illegal" by the current government's law. The US revolution was illegal according to English law, the Mexican Revolution was illegal according to Spanish law, etc. The only question is, can they defend and enforce their independence by use of martial force.