leaderless resistance
/ˌliːdələs rɪˈzɪst(ə)ns/noun
Dissent or resistance by small, independent cells of political activists or paramilitaries which, in order to evade detection or infiltration, are under no central control; the use of such cells as a strategy in espionage, insurgency, etc.
- In later use, frequently associated with the far-right militia movement in the U.S..
Origin
1950s. From leaderless + resistance.