Insurgency is a term used in political and military contexts to describe an organized movement that aims to overthrow an established government or authority through subversion and armed conflict. Insurgencies can have significant consequences for international relations, especially when foreign powers become involved by supporting the insurgents or assisting the government in suppressing the insurgency. In short, an insurgency is a complex and often protracted struggle waged by a group that seeks to challenge and overthrow an established authority.

• Kilcullen, D. (2009). The accidental guerrilla: Fighting small wars in the midst of a big one. Oxford University Press.
• U.S. Department of the Army. (2006). Counterinsurgency (Field Manual No. 3-24). University of Chicago Press.