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A secretive Pentagon purchase of a handheld device packed with Russian components has pulled one of Washington’s most contested mysteries back into the spotlight. The machine, acquired through an undercover operation and now under intensive testing, is suspected by some investigators of mimicking the symptoms long associated with so‑called Havana syndrome. At stake is not only the health of U.S. personnel but also whether the United States has been slow to confront a potential foreign weapon.

Inside the undercover buy

According to officials briefed on the matter, a division of the Department of Defense quietly routed eight‑figure funding to Homeland Security Investigations to secure the device through a covert sting. The operation, which unfolded earlier this year, was designed to obtain the technology without tipping off its original makers or any foreign intelligence service that might be behind it, and it culminated in the Pentagon taking possession of a single, mysterious unit that some sources link to Havana syndrome. One detailed account describes how the Pentagon relied on undercover agents and confidential intermediaries to complete the purchase, underscoring how sensitive officials consider the technology.

Publicly, the Defense Department has not named the manufacturer or the country where the device was first identified, but multiple reports say the hardware is not entirely of Russian origin while still containing critical Russian‑made parts. One source familiar with the technical assessment put it bluntly, saying that “Although the device is not entirely of Russian origin, it contains Russian‑made components,” a description that has been echoed in separate briefings on the Russian electronics embedded inside. That mix of opaque sourcing and foreign components is precisely what has fueled concern inside the intelligence community that the device may be tied to a hostile program targeting U.S. officials abroad.

A suspected link to Havana syndrome

The device at the center of the Pentagon’s probe is reported to emit tightly focused, pulsed radio waves, a capability that immediately caught the attention of investigators studying unexplained neurological symptoms among U.S. personnel. Havana syndrome, first reported by diplomats and spies in Cuba’s capital, has been associated with dizziness, intense headaches, visual disturbances, and cognitive problems that some victims say appeared suddenly after hearing strange sounds or feeling pressure in their heads. Officials who have seen the new hardware say its radio‑frequency output and compact form factor resemble what some had theorized a directed‑energy “Havana Syndrome weapon” might look like, which is why the U.S. government quietly moved to acquire and test the device.

Accounts from those briefed on early trials describe volunteers and investigators experiencing extreme headaches and other discomfort when exposed to the machine at close range, reinforcing suspicions that it could reproduce at least some of the symptoms reported by Havana syndrome patients. One tabloid‑style report went so far as to label the system a “ray gun,” saying the United States bought a mystery “Havana Syndrome weapon” in an undercover operation after a device made with Russian parts caused severe pain and disorientation in test subjects, a characterization that tracks with other descriptions of a compact, directional emitter linked to Havana Syndrome. While the intelligence community remains divided on whether all reported cases share a single cause, the overlap between the device’s effects and victims’ accounts is now impossible for policymakers to ignore.

Russian components and a geopolitical puzzle

The revelation that the device contains Russian‑made components has sharpened long‑running debates over whether Moscow is behind at least some of the incidents involving U.S. diplomats and spies. Technical assessments cited by investigators stress that the hardware is not fully Russian, but that key modules, including parts of the radio‑frequency chain, are sourced from Russian suppliers, a detail that has been highlighted in briefings on the Russian role in its construction. For some analysts, that supply chain is circumstantial but troubling evidence that a Russian research program may have developed or at least contributed to a portable system capable of projecting harmful energy at human targets.

Others in the U.S. government caution that Russian parts alone do not prove state sponsorship, noting that gray‑market electronics from Russian factories often end up in commercial and military gear worldwide. Still, the fact that the Pentagon is now testing a device with Russian components as part of a Havana syndrome probe has raised questions on Capitol Hill about whether earlier intelligence assessments downplayed the possibility of foreign attacks. One detailed report on how the Pentagon is handling the device notes that officials are trying to map its circuitry and trace its provenance, a painstaking process that could eventually link it to specific Russian research institutes or defense contractors if those connections exist.

Inside the Pentagon’s year of testing

Once the undercover purchase was complete, the Pentagon moved the device into secure facilities and began what officials describe as more than a year of structured testing. Engineers and medical experts have been measuring its emissions, experimenting with different power levels, and documenting physiological responses in controlled settings, all while trying to determine whether the machine can reliably reproduce the dizziness, headaches, and cognitive issues reported by affected personnel. One account notes that the Pentagon has focused on the pulsed radio waves the device emits, treating them as a potential smoking gun that could connect the hardware to real‑world incidents.

Despite that intensive work, there are still no public findings, a silence that has frustrated some lawmakers and victims who say they have waited years for answers. Reporting on the internal process suggests that as recently as this month, the Pentagon was still running experiments and refining its models of how the device interacts with the human body. That extended timeline reflects both the technical complexity of directed‑energy research and the political sensitivity of any conclusion that might implicate a foreign power in deliberate attacks on Americans.

A divided intelligence community and unanswered questions

Within the intelligence community, the device has become a focal point in a broader argument over how seriously to treat claims that U.S. personnel were targeted by foreign adversaries. Some analysts, pointing to the Russian components and the apparent ability to induce Havana‑like symptoms, argue that the hardware is evidence that at least one hostile actor has fielded a real, if imperfect, directed‑energy capability. Others remain skeptical, noting that previous reviews found no single cause for all reported cases and warning against leaping from a single piece of equipment to sweeping conclusions about a global campaign. A detailed video briefing on the controversy notes that, Now that the device is in U.S. hands, the intelligence community has sought to understand whether those affected were victims of a directed attack by foreign powers and whether earlier assessments ignored evidence that Russia was attacking Americans.

For the Pentagon, the stakes go beyond assigning blame. If the device’s pulsed radio waves can be definitively linked to Havana syndrome, the Defense Department will face urgent pressure to harden embassies, safe houses, and even hotel rooms against similar attacks, and to develop countermeasures that can detect or disrupt such emissions in real time. The covert purchase, the eight‑figure funding routed through Homeland Security Investigations, and the year of secret testing all point to a government that is finally treating the mystery as a concrete technical problem rather than an abstract medical puzzle. Yet until officials release their findings on the undercover purchase and its Russian components, the device will remain what it has been from the start: a secret object onto which Washington is projecting its deepest anxieties about invisible weapons and unacknowledged attacks.

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