Asymmetric warfare refers to a conflict situation in which opposing sides are significantly unequal in terms of military power, resources, and strategies. Typically, one side has a military force such as a national army, while the other is a non-state actor or rebel group with fewer resources. In such wars, the weaker side often resorts to unexpected, unconventional methods to gain an advantage over its stronger opponent. These tactics include hit-and-run attacks, ambushes, sabotage, attacks on civilians to create fear, cyberattacks, and propaganda.

• Arreguín-Toft, I. (2001). How the weak win wars: A theory of asymmetric conflict. International Security, 26(1), 93-128.