Chávez's followers commemorate 21st anniversary of failed coup
Vice-President Nicolás Maduro promised a civilian-military surprise
The celebration will begin after a special ceremony at the Military History Museum, at 23 de Enero neighborhood.
Chávez's followers are to participate in rallies in different places in west and downtown Caracas.
The celebration includes a "civilian-military surprise," said Executive Vice-President Nicolás Maduro on Saturday.
Hundreds of thousands of demonstrators took to the streets of Brazil on March 13 to demand the ouster of embattled President Dilma Rousseff, carrying banners expressing anger at bribery scandals and economic woes. A banner read "We don't want a new Venezuela in Brazil."