PORTLAND, Ore. (AP) — Portland police are mobilizing to prevent clashes between out-of-state far-right groups planning a rally here and the homegrown anti-fascists who oppose them as America’s culture wars seep into this progressive haven.

Saturday’s rally — and the violence it may bring — are a relatively new reality here, as an informal coalition of white nationalists, white supremacists and extreme-right militias hones its focus on Oregon’s largest city as a stand-in for everything it feels is wrong with the U.S. At the top of that list are the masked and black-clad anti-fascists who turn out to violently oppose right-wing demonstrators as soon as they set foot in town.

Portland leaders are planning a major law enforcement presence on the heels of similar rallies in June and last summer that turned violent, and the recent hate-driven shooting in El Paso, Texas.