"Masada, Action and Defense Movement" is inactive.

The Maximiliano Gomez Revolutionary Brigade was formed in order to carry out attacks to mark the 22-year anniversary of the American military intervention in the Dominican Republic. In April 1965, Lyndon B. Johnson sent in U.S. Marines to restore order in the Dominican capital of Santo Domingo, where political chaos was looming two years after the election of a socialist-leaning government. Under the supervision of U.S. troops, Dr. Joachim Ballaguer was chosen president in a widely-disputed election. Maximiliano Gomez was the leader of the Maoist Movimiento Popular Dominicano (MPD), a militant organization opposed to the Ballaguer government and to U.S. presence in the Dominican Republic.

It remains unknown why this group decided to mark the 22-year anniversary, and they have not carried out any attacks since.

Angry Brigade -- Supported Cause
Autonomous Cells of Rebel Action -- Supported Cause
Conscientious Arsonists (CA) -- Supported Cause

The only information known about May 15 is that they claim responsibility for an arson attack on the National Bank of Greece in central Athens.  The attack took place on January 17, 1998.  A caller to "Skai" radio said that the attack was in support of confessed terrorist Nikos Maziotis, who had recently been arrested by the Greek police for planting a time bomb outside the Industry Ministry of Greece on December 6, 1997.  Maziotis's bomb, which failed to go off, was intended to protest the development of a gold mine in northern Greece.  Several other groups have also attacked to show solidarity with Maziotis, including the Brass Knuckle Anarchist Punks, the Anarchist Group of Virona, Last Generation, Anarchist Faction, and the Angry Brigade.

The selection of a Greek bank branch as a target combined with their declared support of Maziotis, whose own attack was intended to protest a gold mine, indicates that May 15 is strongly anti-capitalist, as are most known terrorist organizations in Greece.  May 15 has not attacked since 1998 and is presumed inactive.