Committees for the Defense of the Revolution
Committees for the Defense of the Revolution (Spanish: Comités de Defensa de la Revolución), or CDR, are a network of neighborhood committees across Cuba. The organizations, described as the "eyes and ears of the Revolution," exist to help support local communities and report on "counter-revolutionary" activity.
Source: Wikipedia — Committees for the Defense of the Revolution (CC BY-SA 4.0)