Havana Syndrome: The Russian military agency GRU is linked to Havana Syndrome.

Reuters, Moscow, April 1st A report that suggested Russian military intelligence might be responsible for the enigmatic “Havana syndrome” condition that has affected American diplomats and spies around the world was rejected by the Kremlin on Monday.
An investigation by Spiegel, 60 Minutes, and Insider reveals connections to a GRU unit that targets political instability and assassinations.
Workers with “Havana Syndrome” stationed worldwide have reported experiencing unexpected symptoms like dizziness.
A collaborative investigation by The Insider, Der Spiegel, and CBS’s 60 Minutes suggests that they might have been the target of Russian sound weapons. Moscow has refuted the allegations. In the past, US officials claimed it was improbable that a foreign power was at fault. However, they did not provide a different explanation in their assessment of “anomalous health incidents” (AHIs), which was released last year, which frustrated people who were impacted.
The American officials also admitted that different intelligence agencies engaged in the assessment had differing degrees of confidence in it. The first case was discovered in Havana, the capital of Cuba, in 2016; however, a recent investigation indicates that the first instances may have occurred in Germany two years earlier. There have been more cases recorded everywhere, from China to Washington.

The Pentagon announced on Monday that a senior defense department official who attended the NATO summit in Lithuania last year showed symptoms resembling those of Havana syndrome. Staff members of the White House, CIA, and FBI are among the American personnel affected by the illness. They have reported experiencing headaches, dizziness, headache pain, and a sharp noise in their ears.
The covert team conducts operations overseas and has been connected to a number of incidents, including the attempt to poison former Russian agent Sergei Skripal in the UK in 2018.

According to The Insider, a Russia-focused website, an officer in the 29155 unit received recognition for their work on the creation of “non-lethal acoustic weapons” as part of the inquiry.

According to a 60 Minutes interview with an American military investigator looking into cases of the condition, patients of the syndrome shared a “Russian nexus” as a common thread.   Greg Edgreen clarified: “There was some angle where they had worked against Russia, focused on Russia, and done extremely well.

“Additionally, he claimed that because his nation did not want to “face some very hard truths,” the official US standard of proof to demonstrate Russian involvement had been set too high.