The Alex Boncayao Brigade was established in May 1984 and was named after a labor leader killed by
Philippine government security forces the year before. The brigade became especially active after the departure of then-President
Ferdinand Marcos as a consequence of the
People Power Revolution, and during the term of President
Corazon Aquino. In 1993,
Filemon Lagman and several
cadre of the Manila-Rizal regional committee of the Communist Party of the Philippines (CPP) broke away from the mainstream group, taking the Alex Boncayao Brigade with them. In a 1993 interview, Nilo dela Cruz stated that the organization had 100 members. He went on to explain that the group was striving to improve their knowledge of remote controlled explosives. Lagman would later give up the armed struggle and become a
labor union organizer. He was assassinated in 2000, allegedly by members of his former revolutionary group. Nilo dela Cruz, using the alias "Sergio Romero", was arrested that same year in
Bulacan after crashing his car while being pursued by government intelligence agents. It would later be revealed that dela Cruz had allied the ABB with the Revolutionary Proletarian Army, forming the
Revolutionary Proletarian Army – Alex Boncayao Brigade. In 2003 it was reported that dela Cruz had "shifted from terrorist activities as leader of the ABB to organizing the labor forces of the Philippines into trade unions". ==Activities==