Dubbed “Operation DISARMageddon,” participants are planning to demonstrate against the wars in Iraq and Afghanistan, as well as the military’s use of fossil fuels. Organizers aren’t saying exactly where and how they’re planning to protest, except that it will be “nonviolent civil resistance” and it will happen “around noon.”

“The U.S. military is the entity most responsible for destabilizing our environment,” a call to action on the group’s web site says. “There are innumerable reasons for this, including these examples: the exorbitant use of fossil fuels, depleted uranium weapons, worldwide transport of weapons and personnel, unlimited air travel, engagement in war and the possession, upkeep and transport of nuclear weapons.”