The party published a newspaper known as Le Drapeau Rouge in French and De Roode Vaan in Dutch.
The party gained parliamentary presence in 1925, as both Van Overstraeten and Jacquemotte were elected to the Chamber of Representatives.
In 2015, however, a team of Belgian historians concluded that it had been orchestrated by anti-communist elements inside the intelligence services, with a prominent role for the agent André Moyen.
[3] The party briefly flirted with the Eurocommunist tendency in the 1970s, but retained an ambiguous relationship with Eurocommunism: it did not entirely reject the Soviet model and remained sceptical towards the formation of a Western European power bloc.
Several foreign communist parties, American, British, German, French and Dutch, had branches in Belgium.