Castro vows to defend brother's legacy in tribute

Late leader had requested no monuments or statues should be erected in his honor

Cuban President Raul Castro pledged on Saturday to uphold his brother Fidel's socialist revolution at a massive rally in honor of the late leader before his burial on Sunday.

Tens of thousands of flag-waving supporters recited the oath with Raul Castro at the Revolution Plaza of Santiago de Cuba, the cradle of Fidel's guerrilla struggle.