Revolutionary Proletarian Army separated from New People's Army
Background
The Rebolusyonaryong Partido ng Manggagawà ng Pilipinas ("Revolutionary Workers' Party of the Philippines") was established after the Negros Regional Party Committee of the New People's Army broke away from the Communist Party of the Philippines as a result of an ideological split in 1996. It organized its military arm two months after the split, calling it the Revolutionary Proletarian Army. The Metro Manila-based Alex Boncayao Brigade, which also broke away from the New People's Army, allied itself with the RPA the year after, forming the Revolutionary Proletarian Army – Alex Boncayao Brigade (RPA-ABB).