Anti-Trump rallies are scheduled for Saturday, October 18 in all 50 states at over 2,500 community events, which have been dubbed “No Kings” protests. The event’s organizer, Indivisible, is calling it “the biggest day of peaceful protest in modern U.S. history.”

The pro-democracy demonstrations are organized by Indivisible and a coalition of partners including: the ACLU, American Federation of Teachers, Common Defense, 50501, Human Rights Campaign, League of Conservation Voters, MoveOn, National Nurses United, Public Citizen, SEIU, and United We Dream.

“Together, millions will send a clear and unmistakable message: We are a nation of equals, and our country will not be ruled by fear or force,” No Kings organizers said in a statement emailed to Fast Company. “As the president escalates his authoritarian power grab, [our] nonviolent movement continues to rise stronger. We are united once again to remind the world: America has No Kings and the power belongs to the people.”

Organizers estimate million of Americans will turn out, building on the momentum of the first No Kings protests in June, which drew over 5 million people.

The October 18 day of action marks the latest chapter in a growing movement of Americans spanning all ages, across red and blue states and in both rural areas and urban centers. Protestors have said they’re concerned with the current state of the U.S. democracy.

Currently, the federal government is imposing mass layoffs and worker furloughs amid a government shutdown; U.S. Immigration and Customs Enforcement (ICE) agents’ raids on immigrants are growing more violent; and National Guard troops are being deployed into U.S. cities and against American citizens in the name of crime reduction. (Although judges have stalled President Donald Trump’s plans to deploy the National Guard in Chicago and in Portland, Oregon, troops are now patrolling in Memphis, Tennessee.)

A complete list of locations for the No Kings events can be found at nokings.org.