The Revolutionary Proletarian Army – Alex Boncayao Brigade engaged in peace negotiations brokered by Eduardo Cojuangco Jr.[2] with the government of Joseph Estrada in 1999; a truce was established in December 2000.
This development prompted a vehement condemnation from Filemon Lagman, who once controlled the Alex Boncayao Brigade; in a press release he branded Arturo Tabara of the RPA and Nilo dela Cruz, the head of the ABB as "scoundrels masquerading as revolutionaries".
[4][5] In April 2013, the RPA-ABB was reported to have changed its name to Kapatiran para sa Progresong Panlipunan ("Brotherhood for Social Progress") and stated that it had renounced violence as a method of advancing its cause.
Paduano resigned as national commander of the RPA-ABB and ran for Congress during the 2013 Philippine general election under the Abang Lingkod party-list.
Nilo dela Cruz and a group of former RPA-ABB members calling themselves "Democratic Front for Filipinism" issued a statement supporting Rodrigo Duterte's war on drugs, and his "revolution against the oligarchs and the exploiters of the Filipino masses".