Belgian stay-behind network

The Belgian stay-behind network, colloquially called "Gladio" (meaning "sword") was a secret mixed civilian and military unit, trained to form a resistance movement in the event of a Soviet invasion and part of a network of similar organizations in North Atlantic Treaty Organisation states. It functioned from at least 1951 until 1990, when the Belgian branch was promptly and officially dissolved after its existence became publicly known following revelations concerning the Italian branch of the stay-behind network.

The history of the Belgian branch of the Gladio network starts in 1948 when Prime Minister Paul-Henri Spaak and Minister of Justice Paul Struye gave the Staatsveiligheid (State Security Service) permission to discuss with allied intelligence services the organization of a clandestine stay-behind network. These negotiations mainly happened with Sir Stewart Menzies of the British SIS and representatives of the then freshly founded CIA. The explicit objectives of this collaboration were outlined in a top-secret letter from Menzies to Spaak:

The amount of influence at this early stage, accredited to the CIA varies from source to source. CIA did not yet have full authority over the Office of Policy Coordination, which directed U.S. covert action until 1952. During the initial negotiations Menzies proposed to keep the US out of the organization, but Spaak objected a further developments not being in a tripartite (Belgium–Great-Britain–United States) or multilateral setting. In the final report of the parliamentary inquiry there is little mention of CIA involvement, but investigative journalist Walter de Bock points, based on Pentagon documents, at the CIA's significant early organizational role and de facto control until 1968. Similarly, Colonel Margot complains in an internal note, dated April 8, 1959, about the influence of the US intelligence services on the Belgian branch of the Gladio-network.

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