Reclaim the Streets also known as RTS, are a collective with a shared ideal of community ownership of public spaces. Participants characterise the collective as a resistance movement opposed to the dominance of corporate forces in globalisation, and to the car as the dominant mode of transport.

Earth First! is a radical environmental advocacy group that originated in the Southwestern United States. It was founded in 1980 by Dave Foreman, Mike Roselle, Howie Wolke, Bart Koehler, and Ron Kezar. Today there are Earth First groups around the world including ones in Australia, Belgium, Canada, the Czech Republic, France, Germany, India, Ireland, Italy, Mexico, the Netherlands, Nigeria, New Zealand, the Philippines, Poland, Slovakia, Spain, the United Kingdom, and the United States.