Many guerrilla war tactics are not new. They’ve just grown more effective because economies are far more sophisticated and more vulnerable.
Infrastructure is one vulnerable network. The rest of the economy relies on communication, transportation, and energy networks. Information and resources flow through these networks. If critical nodes fail, or the links are severed, it causes a cascade failure throughout the economy.
Our infrastructure is built as a scale-free network. These types of networks are robust against a large number of random internal errors. However, hostile agents can observe the structure of scale-free networks and identify critical hubs. Scale-free networks are extremely fragile when under external attack.