Classified American intelligence reports suggest China intends to establish its first permanent military presence on the Atlantic Ocean in the tiny Central African country of Equatorial Guinea, according to U.S. officials.

The officials declined to describe details of the secret intelligence findings. But they said the reports raise the prospect that Chinese warships would be able to rearm and refit opposite the East Coast of the U.S.—a threat that is setting off alarm bells at the White House and Pentagon.

Principal deputy U.S. national security adviser Jon Finer visited Equatorial Guinea in October on a mission to persuade President Teodoro Obiang Nguema Mbasogo and his son and heir apparent, Vice President Teodoro “Teodorin” Nguema Obiang Mangue, to reject China’s overtures…

World-wide, the U.S. finds itself maneuvering to try to block China from projecting its military power from new overseas bases, from Cambodia to the United Arab Emirates.

In Equatorial Guinea, the Chinese likely have an eye on Bata, according to a U.S. official. Bata already has a Chinese-built deep-water commercial port on the Gulf of Guinea, and excellent highways link the city to Gabon and the interior of Central Africa.