I'm not sure that the coup was detected by Obiang's intel or whether is was South African agents who alerted him. The story didn't get a whole lot of coverage here in America.
There were arrests in Guinea (local opposition), Zimbabwe (the mercenaries), and South Africa (the plotters).
That's a coup that was completely compromised by someone's Intel.
Yes, South Africa or Zimbabwe could have been doing Obiang's work for him, but my money says that Guinea did it with its own assets.
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