After an attempted succession from Spain, Catalonia has been invaded. The Spanish Government has voted to move into the area and remove the separatist leaders. This Catalonia is the area of Spain that runs along the Mediterranean Sea’s coast, starting with a border next to France, and continuing down past Barcalona.
In this article they have a good lede. They also do a good job explaining the differences between Spain and Catalonia, and why there is such a crisis. They explain why Catalonia began a movement to try and be independant, and why Spain doesn’t want them too.