Four Pillars of the Green Party
The worldwide green parties
are committed to the following Four Pillars
These were originally defined by European Green Parties, from the foundation of the German Green Party
in 1979-1980 (with its motto Die Grünen: ökologisch, sozial, basisdemokratisch, gewaltfrei 
), and later adopted by the U.S. Green Party
. The U.S. Green Party, and that of Canada, have expanded these into Ten Key Values of the Green Party
The four pillars are generally considered interdependent, reinforcing each other in non-obvious ways. They arose from shared concerns of the peace movement and ecology movement.