País was the urban coordinator of the 26th of July Movement, and was a key organizer within the urban underground movement, collaborating with Fidel Castro's guerrilla forces which were conducting activities in the Sierra Maestra mountains.
País adalah koordinator perkotaan dari Gerakan 26 Juli, dan penyelenggara utama dalam gerakan bawah tanah perkotaan, bekerja sama dengan pasukan gerilya Fidel Castro yang melakukan aktivitas di pegunungan Sierra Maestra.