An insurgency is a movement aimed at overthrowing a government or occupying power through the use of irregular military tactics. Insurgents often rely on guerrilla warfare, which includes ambushes, sabotage, and hit-and-run attacks, to challenge more conventional military forces. These groups typically seek to gain popular support and may operate in rural or urban areas. Insurgencies can arise from various factors, including political oppression, social injustice, or ethnic tensions. They often emerge in regions where the government is perceived as illegitimate or ineffective. Historical examples of insurgencies include the Vietnam War and the Iraqi Insurgency, which involved complex interactions between local populations and external influences.