 Not long after, Moerdani was appointed a Company Commander.As a member of RPKAD, Moerdani became part of the battle to suppress the Revolutionary Government of the Republic of Indonesia (PRRI), a Sumatran-based separatist group.In March 1958, Moerdani parachuted down behind enemy lines in Pekanbaru and Medan to prepare the groundwork for ABRI to take over the two cities.