From 1940 to 1945, he lived underground and then left the country. In 1946, with the democratic restoration, he returned to the country to once more join in with the activities of the Paraguayan Communist Party. He participated in the civil war of 1947, and then was exiled to the Argentina In the year 1978 he was elected as Secretary-General of the Paraguayan Communist Party, a position he held until his death in 1981, in Buenos Aires.