As an act of protest, occupation is a strategy often used by social movements and other forms of collective social action in order to squat and hold public and symbolic spaces, buildings, critical infrastructure such as entrances to train stations, shopping centers, university buildings, squares, and parks. Opposed to a military occupation which attempts to subdue a conquered country, a protest occupation is a means to resist the status quo and advocate a change in public policy. Occupation attempts to use space as an instrument in order to achieve political and economic change, and to construct counter-spaces in which protesters express their desire to participate in the production and re-imagination of urban space. Often, this is connected to the right to the city, which is the right to inhabit and be in the city as well as to redefine the city in ways that challenge the demands of capitalist accumulation. That is to make public spaces more valuable to the citizens in contrast to favoring the interests of corporate and financial capital.

A protest is a public expression of objection, disapproval, or dissent towards an idea or action, typically a political one. Protests can be thought of as acts of cooperation in which numerous people cooperate by attending, and share the potential costs and risks of doing so. Protests can take many different forms, from individual statements to mass political demonstrations. Protesters may organize a protest as a way of publicly making their opinions heard in an attempt to influence public opinion or government policy, or they may undertake direct action in an attempt to enact desired changes themselves. When protests are part of a systematic and peaceful nonviolent campaign to achieve a particular objective, and involve the use of pressure as well as persuasion, they go beyond mere protest and may be better described as civil resistance or nonviolent resistance.