State terrorism refers to acts of terrorism which a state conducts against another state or against its own citizens.
Terrorism, in its broadest sense, is the use of intentional violence and fear to achieve political or ideological aims. The term is used in this regard primarily to refer to intentional violence during peacetime or in the context of war against non-combatants. The terms "terrorist" and "terrorism" originated during the French Revolution of the late 18th century but became widely used internationally and gained worldwide attention in the 1970s during the Troubles in Northern Ireland, the Basque conflict, and the Israeli–Palestinian conflict. The increased use of suicide attacks from the 1980s onwards was typified by the 2001 September 11 attacks in the United States.
Counterterrorism, also known as anti-terrorism, incorporates the practices, military tactics, techniques, and strategies that governments, law enforcement, businesses, and intelligence agencies use to combat or eliminate terrorism. Counterterrorism strategies are a government's motivation to use the instruments of national power to defeat terrorists, the organizations they maintain, and the networks they contain.
Religious terrorism is a type of religious violence where terrorism is used as a strategy to achieve certain religious goals or which are influenced by religious beliefs and/or identity.
Eco-terrorism is an act of violence which is committed in support of environmental causes, against people or property.
The English word militant is both an adjective and a noun, and it is generally used to mean vigorously active, combative and/or aggressive, especially in support of a cause, as in "militant reformers". It comes from the 15th century Latin "militare" meaning "to serve as a soldier". The related modern concept of the militia as a defensive organization against invaders grew out of the Anglo-Saxon fyrd. In times of crisis, the militiaman left his civilian duties and became a soldier until the emergency was over, when he returned to his civilian occupation.
There is no universal agreement on the legal definition of terrorism, although there exists a consensus academic definition created by scholars.
Christian terrorism, a form of religious terrorism, comprises terrorist acts which are committed by groups or individuals who profess Christian motivations or goals. Christian terrorists justify their violent tactics through their interpretation of the Bible and Christianity, in accordance with their own objectives and worldview.
A lone wolf attack', or lone actor attack, is a particular kind of mass murder, committed in a public setting by an individual who plans and commits the act on their own. In the United States, such attacks are usually committed with firearms. In other countries, knives are sometimes used to commit mass stabbings. Although definitions vary, most databases require a minimum of four victims for the event to be considered a mass murder.
Leaderless resistance, or phantom cell structure, is a social resistance strategy in which small, independent groups, or individuals, challenge an established institution such as a law, economic system, social order, or government. Leaderless resistance can encompass anything from non-violent protest and civil disobedience to vandalism, terrorism, and other violent activity.
Army of God (AOG) is an American Christian terrorist organization, members of which have perpetrated anti-abortion violence. According to the Department of Justice and Department of Homeland Security's joint Terrorism Knowledge Base, the Army of God is an active underground terrorist organization in the United States. In addition to numerous property crimes, the group has committed acts of kidnapping, attempted murder, and murder. The AOG was formed in 1982 and, while sharing a common ideology and tactics, the group's members claim that they rarely communicate with each other; this is known more formally as leaderless resistance. The group forbids those who wish to "take action against babykilling abortionists" from discussing their plans with anyone in advance.
Anti-abortion violence is violence committed against individuals and organizations that perform abortions or provide abortion counseling. Incidents of violence have included destruction of property, including vandalism; crimes against people, including kidnapping, stalking, assault, attempted murder, and murder; and crimes affecting both people and property, including arson and terrorism, such as bombings.
In the United States, domestic terrorism is defined as terrorist acts that were carried out within the United States by U.S. citizens and/or U.S. permanent residents. As of 2021, the United States government considers white supremacists to be the top domestic terrorism threat.
Reverend Michael Bray is an American Lutheran minister who was convicted in 1985, along with two other defendants of two counts of conspiracy and one count of possessing unregistered explosive devices in relation to seven bombings of women's health clinics and three offices of women's health advocacy groups in Washington, D.C., Delaware, Maryland and Virginia. Bray and his wife, Jayne, are the named defendants in the Supreme Court decision Bray v. Alexandria, a ruling that determined pro-life demonstrators could not block entrances to abortion clinics in order to stop patients from entering to receive services.
A countermovement in sociology means a social movement opposed to another social movement. Whenever one social movement starts up, another group establishes themselves to undermine the previous group. Many social movements start out as an effect of political activism towards issues that a group disagrees with. “Researchers have used resource mobilization to study all manner of social and political movements such as environmentalism, father's rights groups, religious movements, and abortion rights”. The reason for the start of countermovement groups is that people are competing for resources for political influence. Countermovement groups are a part of American society that try to compete for government legislation to support their own views.
Right-wing terrorism, hard right terrorism, extreme right terrorism or far-right terrorism is terrorism that is motivated by a variety of different right-wing and far-right ideologies, most prominently, it is motivated by Ultranationalism, neo-Nazism, anti-communism, neo-fascism, ecofascism, ethnonationalism, religious nationalism, and anti-government patriot/sovereign citizen beliefs, and occasionally, it is motivated by opposition to abortion, tax resistance, and homophobia. Modern right-wing terrorism largely emerged in Western Europe in the 1970s, and after the Revolutions of 1989 and the dissolution of the Soviet Union in 1991, it emerged in Eastern Europe and Russia.
Left-wing terrorism or far-left terrorism is terrorism motivated by left-wing or far-left ideologies, committed with the aim of overthrowing current capitalist systems and replacing them with communist or socialist societies. Left-wing terrorism can also occur within already socialist states as criminal action against the current ruling government.
Sociology of terrorism is a field of sociology that seeks to understand terrorism as a social phenomenon. The field defines terrorism, studies why it occurs and evaluates its impacts on society. The sociology of terrorism draws from the fields of political science, history, economics and psychology. The sociology of terrorism differs from critical terrorism studies, emphasizing the social conditions that enable terrorism. It also studies how individuals as well as states respond to such events.
Radicalization is the process by which an individual or a group comes to adopt increasingly radical views in opposition to a political, social, or religious status quo. The ideas of society at large shape the outcomes of radicalization; for example, radical movements can originate from a broad social consensus against progressive changes in society or from a broad desire for change in society. Radicalization can result in both violent and nonviolent action – academic literature focuses on radicalization into violent extremism (RVE) or radicalisation leading to acts of terrorism. Multiple separate pathways can promote the process of radicalization, which can be independent but are usually mutually reinforcing.
The following outline is provided as an overview of and topical guide to war:
