Sources: *NDF website. **Bulgar, March 28, 2019
Sison was first involved in such a tactic in the late 1950, when he joined UP academic Francisco Nemenzo and other members of the old pro-Soviet Partido Komunista ng Pilipinas, in establishing the Bertrand Russell Peace Foundation. It succeeded in recruiting what would later become Sison’s first core group, attracted to the organization’s campaign against America’s war in Vietnam.