The tanquetazo is seen as the prelude to the successful coup of 11 September 1973.[5] Amongst other consequences, Army Intelligence officers conducted a thorough study of the weaponry used against the rebelling troops, and the locations from which they were fired.[6] Additionally, the strength of the so-called "industrial belts", traditional strongholds of pro-government workers, was accurately gauged and concluded to be weak, even after President Allende's call on all workers to defend the government.