An official within the Biden administration 'who was granted anonymity to discuss a sensitive subject' told The Wall Street Journal that the Chinese government has long had 'intelligence collection facilities in Cuba' and even 'conducted an upgrade' of those facilities 'in 2019.'
This is another example – the most flagrant yet – of what is called 'grey zone' warfare, where China deliberately violates the rules of international order to see how much it can get away with before it provokes a response.