La Marcha del Silencio is a public mobilization that has been carried out continuously since 1995 every May 20 in Montevideo, Uruguay. It is organized and convened by Uruguayan Mothers and Relatives of Disappeared Detainees and other organizations in defense of human rights, and its objective is to call on civil society to march in order to generate social pressure for disappearances and unpunished murders to be clarified. during the last civic-military dictatorship in Uruguay and in South America, within the framework of the Condor Plan.