Havana, Jun 3 (Prensa Latina) Cuban President Miguel Diaz-Canel on Thursday congratulated Army General Raul Castro on his 90th birthday, and described him as a benchmark for any communist and revolutionary. On his Twitter account, the head of State pointed out that Raul Castro, brother in blood and ideas of the historic leader, Fidel Castro, and his best disciple, is also a prominent political creator. 'The work undertaken under his leadership of the country in the last decade is colossal. His legacy of resistance to threats and aggressions and in the search to improve our society is paradigmatic,' Diaz-Canel tweeted.