Cuba held a traditional rally on Sunday to commemorate one of the revolution’s most important anniversaries but former president Raul Castro was conspicuously absent. It was the first time in at least 30 years that 95-year-old Castro had not attended the event, and no explanation was given. President Miguel Diaz-Canel read a congratulatory message from Castro to his compatriots at the rally, held in the eastern city of Pinar del Río. The annual event commemorates the July 26, 1953 assault led by...