I don't remember exactly where I learned it (thanks capitalism) but essentially the Spanish anarchist model caused a bunch of issues to arise essentially the country was divided like Europe in idk 1100s

I think The Finnish Bolshevik video about it should be more informative than my half assed rant ever could https://youtu.be/3ufTFRGPrCM

or also https://www.youtube.com/watch?v=dz9m8O1fxAs by Marxism Today