Keo Meas was involved in the reorganization of the city party unit, after it had been broken up by arrests in July 1952.
10 Facts About Keo Meas
However, due to the harsh political climate, Keo Meas was the only Krom Pracheachon candidate able to run any campaign work at all.
In 1960, as the KPRP held its second congress, Keo Meas was included into the party Central Committee.
However, at the party congress in 1963, Keo Meas was excluded from the Central Committee.
Keo Meas travelled to Hanoi in the second half of 1968, to seek support from the exiled communist leadership for the ongoing struggle of the party in Cambodia.
Keo Meas met with veteran leader Son Ngoc Minh and with Vietnamese officials, but was unable to sway them over to support armed revolt against the Sihanouk regime, whom the Vietnamese considered as a lesser evil.
Keo Meas was in Hanoi at the time of Pol Pot's return to Cambodia, and it had been Keo Meas who had organized Pol Pot journey back.
Keo Meas became the ambassador of the Royal Governmental of National Unity of Kampuchea to the People's Republic of China.
Keo Meas returned to Cambodia in May 1975 to begin working at the office of the party Central Committee.
Keo Meas was however put in house arrest, suspected of being pro-Vietnamese.