The US has demanded Cuba close Russian and Chinese spy outposts as the Trump administration intensifies pressure with an energy blockade and sanctions. The article examines the history of notable agents from both nations operating covertly.

<img alt="A man stands looking at a phone, near a poster with an image of Fidel Castro on it." height="349" src="https://i.cbc.ca/ais/933fcc84-38bd-4b69-b396-6c7f81e41a37,1779755827153/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C324%2C5097%2C2867%29%3BResize%3D%28620%29" title="A man stands by an image of Fidel Castro, reading in Spanish, &quot;Death to the invader,&quot; in Havana, Monday, May 25, 2026. (AP Photo/Jorge Luis Banos)" width="620" /><p>U.S. demands that Cuba close its Russian an...