Terrorism, in its broadest sense, is the use of violence against non-combatants 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. There are various different definitions of terrorism, with no universal agreement about it. Different definitions of terrorism emphasize its randomness, its aim to instill fear, and its broader impact beyond its immediate victims.
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.
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. It can be motivated by Ultranationalism, neo-Nazism, anti-communism, neo-fascism, ecofascism, ethnonationalism, religious nationalism, anti-immigration, anti-semitism, anti-government sentiment, patriot movements, sovereign citizen beliefs, and occasionally, it can be motivated by opposition to abortion, 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.
Terrorism in Russia has a long history starting from the time of the Russian Empire. Terrorism, in the modern sense, means violence against civilians to achieve political or ideological objectives by creating extreme fear.
Terrorism in Australia deals with terrorist acts in Australia as well as steps taken by the Australian government to counter the threat of terrorism. In 2004 the Australian government has identified transnational terrorism as also a threat to Australia and to Australian citizens overseas. Australia has experienced acts of modern terrorism since the 1960s, while the federal parliament, since the 1970s, has enacted legislation seeking to target terrorism.
Until the late 2000s, terrorism in Sweden was not seen as a serious threat to the security of the state. However, there has been a rise in far right and Islamist terrorist activity in the 21st century.
Terrorism in the United Kingdom, according to the Home Office, poses a significant threat to the state. There have been various causes of terrorism in the UK. Before the 2000s, most attacks were linked to the Northern Ireland conflict. In the late 20th century there were also attacks by Islamic terrorist groups. Since 1970, there have been at least 3,395 terrorist-related deaths in the UK, the highest in western Europe. The vast majority of the deaths were linked to the Northern Ireland conflict and happened in Northern Ireland. In mainland Great Britain, there were 430 terrorist-related deaths between 1971 and 2001. Of these, 125 deaths were linked to the Northern Ireland conflict, and 305 deaths were linked to other causes, including 270 in the Lockerbie bombing. Since 2001, there have been almost 100 terrorist-related deaths in Great Britain.
Germany has experienced significant terrorism in its history, particularly during the Weimar Republic and during the Cold War, carried out by far-left and far-right German groups as well as by foreign terrorist organisations.
Terrorism in France refers to the terrorist attacks that have targeted the country and its population during the 20th and 21st centuries. Terrorism, in this case is much related to the country's history, international affairs and political approach. Legislation has been set up by lawmakers to fight terrorism in France.
Terrorism in Norway includes a list of major terrorist incidents where organized groups and lone wolves have tried carrying out attacks. In recent years, there has been a rise mostly of Islamic extremism and far-right violence and various groups have been suspected of terrorism plans.
Terrorism in Spain has been committed by various groups and people.
Terrorism in Brazil has occurred since at least the 1940s.
Siege is an anthology of essays first published as a single volume in 1992, written in 1980s by James Mason, a neo-Nazi and associate of the cult leader Charles Manson. After growing disillusioned with the mass movement approach of neo-Nazi movements, he began advocating for white revolution through terrorism. Referred to as the "Godfather of Fascist Terrorism", Mason has been proscribed as a "terrorist entity" in Canada.” Mason originally wrote the essays for the eponymous newsletter of the National Socialist Liberation Front, a militant splinter of the American Nazi Party.
On 20 December 2014, a man in Joué-lès-Tours near the city of Tours in central France entered a police station and attacked officers with a knife, shouting "Allahu Akbar" and injuring three before he was shot and killed. The attack was categorised as a case of religiously inspired terrorism by Europol, and has been reported by Europol as well as mappings by CNN and AFP as inspired by the Islamic State of Iraq and the Levant (ISIL).
Islamic terrorism has been carried out in Europe by the jihadist groups Islamic State (ISIL) or Al-Qaeda as well as Islamist lone wolves since the late 20th century. Europol, which releases the annual EU Terrorism Situation and Trend report (TE-SAT), used the term "Islamist terrorism" in reports for the years 2006–2010, "religiously inspired terrorism" for the years 2011–2014, and has used "jihadist terrorism" since then. Europol defines jihadism as "a violent ideology exploiting traditional Islamic concepts".
On 20 June 2017, a terrorist bomb caused a small explosion at Brussels-Central railway station in Brussels, Belgium; there were no casualties. Soldiers patrolling the station subsequently killed the suspect with three to four shots, according to eyewitnesses. The perpetrator was Oussama Zariouh, a 36-year-old Moroccan national who lived in the Molenbeek municipality and who had assembled a defective explosive device.
Terrorism in Turkey is defined in Turkey's criminal law as crimes against the constitutional order and internal and external security of the state by the use of violence as incitement or systematic to create a general climate of fear and intimidation of the population and thereby effect political, religious, or ideological goals. Since the establishment of the Republic of Turkey, both organized groups, lone wolf, and international spy agencies have committed many acts of domestic terrorism against Turkish people.
Far-right terrorism in Australia refers to far-right-ideologically influenced terrorism on Australian soil. Far-right extremist groups have existed in Australia since the early 20th century, however the intensity of terrorist activities have oscillated until the present time. A surge of neo-Nazism based terrorism occurred in Australia during the 1960s and the 1970s, carried out primarily by members of the Ustaše organisation. However in the 21st century, a rise in jihadism, the White genocide conspiracy theory, and after effects of the COVID-19 pandemic have fuelled far-right terrorism in Australia. Both the Australian Security Intelligence Organisation (ASIO) and the Australian Federal Police (AFP) are responsible for responding to far-right terrorist threats in Australia.
