What is a group of fighters who sabotage?

A group of fighters who engage in sabotage is often referred to as a guerrilla group or insurgency. These groups typically operate outside of conventional military structures, using unconventional tactics to disrupt and undermine an opposing force. Their activities can include destroying infrastructure, conducting ambushes, or spreading Propaganda to weaken the enemy's resolve. Sabotage is a key strategy for these groups to achieve their political or military objectives while operating with limited resources.