There are many similarities with the 15M (‚indignados‘) movement, but the most notable difference is the union banners. The 15M was organised on an explicitly ‚no parties, no unions‘ platform, in direct response to the perceived betrayal by the unions in reaching a ‚social pact‘ with the government on pension reform following a general strike in September 2010. One of the main unions (Unión General de Trabajadores, UGT) has close ties with the PSOE, the former government. With the Partido Popular (PP) now in power, the ideological lines are far sharper.