Miguel Díaz-Canel spoke to crowds in Havana the US is attempting to destroy Cuba’s political system.
He announced the US seeks total control through the nation.
Díaz-Canel called US policies a type of political genocide during July 26 events.
He stressed this is a danger to Cuba’s right to govern.
Raúl Castro was absent from the main rally.
Tensions stay high due to sanctions and American political pressure.