Factbox - Fidel Castro, as seen by allies and enemies

Then Cuban President Fidel Castro laughs during the year-end session of the Cuban parliament in Havana in this December 23, 2005 file photo. REUTERS/Claudia Daut/File Photo

Fidel Castro, the Cuban revolutionary leader who built a communist state on the doorstep of the United States and for five decades defied U.S. efforts to topple him, has died, Cuban television said. He was 90.

Here are some comments on Castro from his friends and foes over the years.