A former Intelligence officer is accusing the CIA of gaslighting the victims of a debilitating health phenomenon known as Havana syndrome.

WASHINGTON—China and Cuba are negotiating to establish a new joint military training facility on the island, sparking alarm in Washington that it could lead to the stationing of Chinese troops and other security and intelligence operations just 100 miles off Florida’s coast, according to current and former U.S. officials.

WASHINGTON—China and Cuba have reached a secret agreement for China to establish an electronic eavesdropping facility on the island, in a brash new geopolitical challenge by Beijing to the U.S., according to U.S. officials familiar with highly classified intelligence.