Miguel Díaz-Canel told crowds in Havana the US is trying to undermine Cuba’s political system.
He announced America aims for full control across Cuba.
Díaz-Canel branded US policies a type of political genocide during July 26 events.
He warned this is a threat to Cuba’s right to govern.
Raúl Castro stayed away from the biggest rally.
Tensions are elevated as a result of sanctions and US political pressure.