Insurgent movements are organized efforts by groups to challenge or overthrow an established government or authority. These groups often use unconventional tactics, such as guerrilla warfare, to gain support and achieve their goals. Insurgents typically arise in response to perceived injustices, oppression, or lack of political representation. These movements can vary widely in their ideologies and objectives, ranging from political reform to complete regime change. Insurgents may seek to establish a new government or promote specific social or economic changes. Examples of insurgent movements include the Taliban in Afghanistan and the FARC in Colombia.