Shortly after his inauguration, he dissolved the Estado Mayor Presidencial (Presidential Guard), an institution charged with protecting and safeguarding the President of Mexico and the First Lady of Mexico. In December 2018, López Obrador ordered the creation of a truth commission to re-examine one of the country's most notorious unsolved crimes: the kidnapping and presumed murder of 43 trainee teachers who disappeared after they were attacked by cartel gunmen and corrupt police officers. On March 1, 2019, Obrador said that he will open up the General National Archives to show how intelligence agencies, particularly the CISEN, targeted activists and opposition groups during the Dirty War. During the presidency of López Obrador, the traditional Revolution Day civil-military-athletic parade on 20 November was reinstated that same year (2019) after 5 years.