Means to achieve these ends include advocacy of pacifism, non-violent resistance, diplomacy, boycotts, peace camps, moral purchasing, supporting anti-war political candidates, legislation to remove the profit from government contracts to the Military–industrial complex, banning guns, creating open government and transparency tools, direct democracy, supporting Whistleblowers who expose War-Crimes or conspiracies to create wars, demonstrations, and national political lobbying groups to create legislation. The political cooperative is an example of an organization that seeks to merge all peace movement organizations and green organizations, which may have some diverse goals, but all of whom have the common goal of peace and humane sustainability. A concern of some peace activists is the challenge of attaining peace when those that oppose it often use violence as their means of communication and empowerment.