Left-wing terrorism is a form of terrorist political violence motivated by far-left ideologies, committed with the aim of overthrowing current capitalist systems and replacing them with communist, Marxist, anarchist or socialist societies. Left-wing terrorism can also occur within already socialist states as criminal action against the current ruling government.
The majority of left-wing terrorist groups originated in the aftermath of World War II and they were predominantly active during the Cold War. Most left-wing terrorist groups that had operated in the 1970s and 1980s disappeared by the mid-1990s.