Resistance movement
A resistance movement or resistance organization was a group of individuals who were resolved to fighting off an occupying enemy force, usually by guerrilla warfare.

Structure 
According to Kira Nerys, "A resistance organization is structured into cells, autonomous groups of ten to twenty people. That way if anyone gets captured, their ability to compromise the organization is limited. They can't be forced to name names that they don't know." This was done in order to decentralize the movement's operation, and as such, "smaller groups are safer," because "[t]hey're harder to track down," which also lessens the risk of the entire movement being wiped out in a single attack.  ()

History 
The French Resistance movement was formed after the occupation of France by German forces during World War II. They used secret messages, sent by courier, to coordinate attacks on German targets with British and American forces. () 

An android  of Harry Mudd once claimed to be part of a secret  against the Federation. ()

During the mid-23rd century, an android impostor of  claimed to be part of a  against the Federation. ()

In the mirror universe, the  – a rebel movement comprised of Vulcans, Andorians, Tellarites, Klingons, and other non- races – waged a war of rebellion against the Terran Empire in the 22nd and 23rd centuries. (, )

During the Occupation of Bajor, the Bajoran Resistance operated many cells across the planet and on Cardassian orbital stations, such as Terok Nor. ( et al)

The Maquis resistance movement was formed in 2370 by the residents of several disputed planets in the United Federation of Planets-Cardassian Union demilitarized Zone, after the Federation decided to turn control of the area over to Cardassian forces. (,  et al)

The Alsaurian resistance movement was active against the Mokra Order in 2372. ()

In 2375, Legate Damar formed the Cardassian Liberation Front, a resistance movement against the oppression of Dominion forces in Cardassian space. The majority of the resistance was made up of former Cardassian military officers and, as such, had little or no training in guerrilla tactics. The newly appointed Commander Kira was sent by Starfleet to provide assistance in this matter due to her experience during the Cardassian occupation of Bajor years earlier. ()

Unimatrix Zero was a virtual environment turned resistance movement created in 2377 by Borg drones who had regained their sense of individuality. Though the virtual environment was eventually discovered and destroyed by the Borg Queen, several drones had managed to gain control of the vessels they were on and continued their resistance against the Borg. ()

External link

Groups
Philosophical movements