Pentagon Watchdog Refuses Senate Probe Into Starlink Slowdowns in Ukraine

The Pentagon’s inspector general has refused a bipartisan Senate request to investigate restrictions on SpaceX’s Starlink and Starshield services that Ukrainian officials say disrupted their ability to intercept Russian attack drones.

The decision, outlined in an October 27 letter obtained by the Associated Press, leaves unresolved questions over who authorized the changes. Elon Musk has acknowledged restricting access, while President Donald Trump denies ordering the slowdown and Vice President JD Vance has suggested a role for U.S. government direction.

Pentagon Watchdog Defers Investigation

Nine senators from both parties requested an urgent inquiry on October 15 into whether Pentagon officials or contractors had ordered, approved or known in advance about changes to satellite communications and intelligence-sharing capabilities supporting Ukraine.

The group included Democrats Jeanne Shaheen, Jack Reed, Dick Durbin, Chris Coons and Richard Blumenthal, alongside Republicans Thom Tillis, Susan Collins, Lisa Murkowski and John Cornyn.

Their concerns extended beyond Ukraine’s military operations. The senators cited reports that interruptions had complicated efforts by U.S. personnel to reach shelters during Russian attacks, alongside the deterioration of Ukrainian defenses against drones and missiles.

The lawmakers also sought the preservation of relevant records and requested a briefing by November 1.

Inspector General Platte Moring III declined to open the investigation, determining that the issues fell under the contracting responsibilities of the Air Force and U.S. Space Force.

Under Secretary of Defense for Policy Elbridge Colby had communicated that position to the watchdog’s office.

Inspector general spokeswoman Mollie Halpern said the office had “carefully considered the congressional request and determined that the matters raised were best addressed by the Department.”

The office did not rule out reconsidering its decision if further information emerged.

Shaheen described the refusal as “concerning,” citing contradictory explanations from SpaceX and the administration and calling for “an independent accounting and review.”

Bloomberg separately reported that the watchdog had declined to examine disruptions to intelligence-sharing arrangements with Ukraine, treating the wider dispute as a contractual matter.

Starlink Restrictions Disrupted Ukrainian Drone Defenses

Ukrainian military units began experiencing abrupt connectivity restrictions around October 12–14, without advance notification.

The changes affected satellite terminals operating above approximately 160 km/h, including equipment connected to Starshield, the Pentagon-funded military system developed using Starlink technology.

Kyiv said the restrictions undermined the operation of interceptor drones designed to engage faster Russian Shahed variants, which can fly at speeds of 400–600 km/h.

President Volodymyr Zelensky and defense technology adviser Serhii Beskrestnov linked the restrictions to reduced interception capabilities during a period of extensive Russian drone attacks.

Ukrainian officials also reported disruptions to reconnaissance, logistics, medium-range strikes and some aircraft operations.

Tests conducted outside Ukraine reportedly showed terminals maintaining connections at higher speeds in European Union countries, prompting Ukrainian officials to characterize the restrictions as geographically targeted.

Service was reportedly restored by October 24. Ukraine’s Defense Ministry subsequently reported stable connectivity at speeds exceeding 400 km/h.

Musk and Trump Offer Conflicting Explanations

Musk has drawn a distinction between the commercial Starlink service and Starshield, which operates under U.S. government control.

On October 14, he said restrictions affecting Starshield were determined by American authorities rather than SpaceX.

“systems are owned and controlled by the US government. Any limits on speed or usage are decided by the US military and ultimately POTUS,” Musk said.

Days later, following reports that service had been restored, Musk acknowledged that SpaceX had closed what he described as a loophole permitting Ukrainian forces to use commercial Starlink for offensive drone operations.

He accused Ukraine’s military of violating the service’s conditions, arguing that the commercial network was not intended to support attacks designed to kill people.

Ukrainian officials rejected that explanation. They argued that existing geographical and speed restrictions already prevented commercial Starlink from being used for deep strikes into Russian territory, with military operations relying primarily on Starshield.

Trump has repeatedly denied directing the restrictions, as have Defense Secretary Pete Hegseth and Secretary of State Marco Rubio.

Rubio characterized the matter as a private contractual issue involving SpaceX.

The Wall Street Journal, however, reported that Musk had ordered the slowdown following discussions with Trump and senior administration officials, amid disagreements over Ukrainian strikes on Russian diesel refineries.

Other reporting, including accounts attributed to sources by Reuters, pointed toward a White House-originated decision.

Trump subsequently indicated that he would intervene if the restrictions remained in place.

Vance Raises Questions Over Government Direction

Vance’s explanation added another dimension to the dispute over responsibility for the restrictions.

Speaking around October 22, the vice president characterized decisions over SpaceX’s wartime services as a matter requiring government direction rather than unilateral action by Musk.

“Fundamentally Elon Musk runs a private corporation, and I think it’s completely understandable that he doesn’t want to get in the middle of what is a war between two state actors without the United States government effectively directing him on what to do. So I don’t think this is about Elon.”

His remarks have prompted questions about possible White House coordination, although they did not explicitly confirm that the administration ordered the slowdown.

The dispute unfolded amid tensions between Washington and Kyiv over Ukrainian attacks on Russian refineries, which Trump had criticized in connection with higher U.S. energy prices.

Ukraine’s Dependence on SpaceX Remains Exposed

The restrictions have renewed scrutiny of Ukraine’s reliance on satellite infrastructure supplied by a private American company for essential military communications.

Starshield was developed as a more government-controlled alternative to commercial Starlink, partly in response to earlier concerns over Musk’s influence on the availability of wartime connectivity.

Yet the October disruptions affected military-grade services as well as commercial connections, exposing the operational consequences of restrictions imposed on high-speed systems.

Following the episode, Finnish satellite company Iceye announced a partnership with Nokia and Ukraine’s Defense Ministry to explore satellite communications capabilities under greater national control.

The Pentagon watchdog’s decision leaves the central question of responsibility unresolved, with lawmakers seeking independent scrutiny while military contracting authorities are left to address the dispute.