If Madrid is really determined to put down a Catalonian rebellion, they’ll just send in the hated Guardia Civil with their bicorn hats.
Guardia Civil makes the Italian Carabinieri look like boy scouts. Franco used them to hold Spain together after 1939.
Hated? You must be kidding. http://1.bp.blogspot.com/-aGRCeSmT-yk/VH-iSOUpQkI/AAAAAAAAA2U/6OUJiUbVbN0/s1600/guardia-civil.jpg