Case study of Argentinian Superior Tribunal of Justice litigation settlement related to the case of ACIJ v the City of Buenos Aires. Though the Constitution of the City of Buenos Aires establishes a duty for the city government to provide all children over 45 days old with access to education, since at least 2002 thousands of children were denied early education. Civil society organisation ACIJ successfully used budget analysis and strategic litigation to pressure the city government to meet its obligation to its children.