 On July 29, 1968, "students barricaded themselves inside their high school to protest police abuse" then "infantry troops used a bazooka to blast" into the school and "proceeded to beat and ultimately arrest one thousand students".This and many other cases of police abuse triggered an ultimate student protest on October 2, 1968.Internally, the 1968 student movement was linked to "the growing criticism of the Mexican Revolution that was particularly evident in the labor struggles of the 1950s and 1960s".