 He worked alongside Ferhat Abbas during the Second World War within the party "Friends of the Manifesto of Liberty" and then to the "Democratic Union for the Algerian Manifesto".Elected to Board of the French Union, Boumendjel had to leave Algeria to settle in France.He became a member of the "Federation of France's National Liberation" Front from 1957, then member of the "National Council of the Algerian Revolution" from 1957 to 1962
He then went to Tunisia where he led the newspaper El Moudjahid appearing in the French language.