On behalf of the members of the Brigade, 1,500 of whom were in formation at the stadium, he presented the Brigade flag to the President who said: "Commander I assure you that this flag will be returned to this Brigade in a free Havana." Since his arrival in the United States, Oliva developed a close relationship with U.S. Attorney General Robert F. Kennedy.
As a representative of the Brigade's members, 1,500 of whom were gathered at the stadium, he presented the Brigade flag to the President who vowed: "Commander I assure you that this flag will be returned to this Brigade in a liberated Havana." Following his arrival in the United States, Oliva cultivated a strong relationship with U.S. Attorney General Robert F. Kennedy.