"First, right-wing terrorism refers to the use or threat of violence by sub-national or non-state entities whose goals may include racial or ethnic supremacy; opposition to government authority; anger at women, including from the incel (“involuntary celibate”) movement; and outrage against certain policies, such as abortion. This analysis uses the term “right-wing terrorism” rather than “racially- and ethnically-motivated violent extremism,” or REMVE, which is used by some in the U.S. government. Second, left-wing terrorism involves the use or threat of violence by sub-national or non-state entities that oppose capitalism, imperialism, and colonialism; pursue environmental or animal rights issues; espouse pro-communist or pro-socialist beliefs; or support a decentralized social and political system such as anarchism. Third, religious terrorism includes violence in support of a faith-based belief system, such as Islam, Judaism, Christianity, and Hinduism, among many others. As highlighted in the next section, the primary threat from religious terrorists comes from Salafi-jihadists inspired by the Islamic State and al-Qaeda. Fourth, ethnonationalist terrorism refers to violence in support of ethnic or nationalist goals—often struggles of self-determination and separatism along ethnic or nationalist lines."