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China Operates Three Signal-Intelligence Sites in Cuba, Monitoring US

7/21/2026

Summary

Story summary

The State Department report says China operates three of the eighteen known signals-intelligence sites in Cuba.
The locations enable Beijing to monitor electronic communications, U.S. military installations and maritime activity in the southeastern United States.
China and Russia have tripled their intelligence personnel at Cuban sites since 2023.
The assessment notes that some facilities are jointly operated with Cuba and does not identify the three sites or provide new intelligence.

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Story summary

The State Department report says China operates three of the eighteen known signals-intelligence sites in Cuba.
The locations enable Beijing to monitor electronic communications, U.S. military installations and maritime activity in the southeastern United States.
China and Russia have tripled their intelligence personnel at Cuban sites since 2023.
The assessment notes that some facilities are jointly operated with Cuba and does not identify the three sites or provide new intelligence.