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US withdrawal of support
The US stops providing arms to the Batista regime. This severely weakened Batista's position. The Cuban air force also rapidly lost power as it had no spare parts -
Batista launches offensive
Operation Verano - 10 000 troops and tanks sent to the east. Castro defeats them due to guerrilla warfare tactics and superior intelligence -
Battle of El Jigue
11 - 21 July. Humiliating loss for Batista. The leader of the forces was Castro's former classmate, and he surrendered and gave his weapons to Casto's army